Complete Parameter List

Full Parameter List of AntennaTracker latest V4.3.0 dev

You can change and check the parameters for another version:

This is a complete list of the parameters which can be set (e.g. via the MAVLink protocol) to control vehicle behaviour. They are stored in persistent storage on the vehicle.

This list is automatically generated from the latest ardupilot source code, and so may contain parameters which are not yet in the stable released versions of the code.

AntennaTracker Parameters

FORMAT_VERSION: Eeprom format version number

Note: This parameter is for advanced users

This value is incremented when changes are made to the eeprom format

SYSID_THISMAV: MAVLink system ID of this vehicle

Note: This parameter is for advanced users

Allows setting an individual system id for this vehicle to distinguish it from others on the same network

Range
1 to 255

SYSID_MYGCS: Ground station MAVLink system ID

Note: This parameter is for advanced users

The identifier of the ground station in the MAVLink protocol. Don't change this unless you also modify the ground station to match.

Range
1 to 255

SYSID_TARGET: Target vehicle's MAVLink system ID

Note: This parameter is for advanced users

The identifier of the vehicle being tracked. This should be zero (to auto detect) or be the same as the SYSID_THISMAV parameter of the vehicle being tracked.

Range
1 to 255

YAW_SLEW_TIME: Time for yaw to slew through its full range

This controls how rapidly the tracker will change the servo output for yaw. It is set as the number of seconds to do a full rotation. You can use this parameter to slow the trackers movements, which may help with some types of trackers. A value of zero will allow for unlimited servo movement per update.

Increment	Range	Units
0.1	0 to 20	seconds

PITCH_SLEW_TIME: Time for pitch to slew through its full range

This controls how rapidly the tracker will change the servo output for pitch. It is set as the number of seconds to do a full range of pitch movement. You can use this parameter to slow the trackers movements, which may help with some types of trackers. A value of zero will allow for unlimited servo movement per update.

Increment	Range	Units
0.1	0 to 20	seconds

MIN_REVERSE_TIME: Minimum time to apply a yaw reversal

When the tracker detects it has reached the limit of servo movement in yaw it will reverse and try moving to the other extreme of yaw. This parameter controls the minimum time it should reverse for. It is used to cope with trackers that have a significant lag in movement to ensure they do move all the way around.

Increment	Range	Units
1	0 to 20	seconds

START_LATITUDE: Initial Latitude before GPS lock

Combined with START_LONGITUDE this parameter allows for an initial position of the tracker to be set. This position will be used until the GPS gets lock. It can also be used to run a stationary tracker with no GPS attached.

Increment	Range	Units
0.000001	-90 to 90	degrees

START_LONGITUDE: Initial Longitude before GPS lock

Combined with START_LATITUDE this parameter allows for an initial position of the tracker to be set. This position will be used until the GPS gets lock. It can also be used to run a stationary tracker with no GPS attached.

Increment	Range	Units
0.000001	-180 to 180	degrees

STARTUP_DELAY: Delay before first servo movement from trim

This parameter can be used to force the servos to their trim value for a time on startup. This can help with some servo types

Increment	Range	Units
0.1	0 to 10	seconds

SERVO_PITCH_TYPE: Type of servo system being used for pitch

This allows selection of position servos or on/off servos for pitch

Values
Value Meaning 0 Position 1 OnOff 2 ContinuousRotation

SERVO_YAW_TYPE: Type of servo system being used for yaw

This allows selection of position servos or on/off servos for yaw

Values
Value Meaning 0 Position 1 OnOff 2 ContinuousRotation

ONOFF_YAW_RATE: Yaw rate for on/off servos

Rate of change of yaw in degrees/second for on/off servos

Increment	Range	Units
0.1	0 to 50	degrees per second

ONOFF_PITCH_RATE: Pitch rate for on/off servos

Rate of change of pitch in degrees/second for on/off servos

Increment	Range	Units
0.1	0 to 50	degrees per second

ONOFF_YAW_MINT: Yaw minimum movement time

Minimum amount of time in seconds to move in yaw

Increment	Range	Units
0.01	0 to 2	seconds

ONOFF_PITCH_MINT: Pitch minimum movement time

Minimim amount of time in seconds to move in pitch

Increment	Range	Units
0.01	0 to 2	seconds

YAW_TRIM: Yaw trim

Amount of extra yaw to add when tracking. This allows for small adjustments for an out of trim compass.

Increment	Range	Units
0.1	-10 to 10	degrees

PITCH_TRIM: Pitch trim

Amount of extra pitch to add when tracking. This allows for small adjustments for a badly calibrated barometer.

Increment	Range	Units
0.1	-10 to 10	degrees

YAW_RANGE: Yaw Angle Range

Yaw axis total range of motion in degrees

Increment	Range	Units
0.1	0 to 360	degrees

DISTANCE_MIN: Distance minimum to target

Tracker will track targets at least this distance away

Increment	Range	Units
1	0 to 100	meters

ALT_SOURCE: Altitude Source

What provides altitude information for vehicle. Vehicle only assumes tracker has same altitude as vehicle's home

Values
Value Meaning 0 Barometer 1 GPS 2 GPS vehicle only

MAV_UPDATE_RATE: Mavlink Update Rate

The rate at which Mavlink updates position and baro data

Increment	Range	Units
1	1 to 10	hertz

PITCH_MIN: Minimum Pitch Angle

The lowest angle the pitch can reach

Increment	Range	Units
1	-90 to 0	degrees

PITCH_MAX: Maximum Pitch Angle

The highest angle the pitch can reach

Increment	Range	Units
1	0 to 90	degrees

LOG_BITMASK: Log bitmask

4 byte bitmap of log types to enable

Bitmask
Bit Meaning 0 ATTITUDE 1 GPS 2 RCIN 3 IMU 4 RCOUT 5 COMPASS 6 Battery

PITCH2SRV_P: Pitch axis controller P gain

Pitch axis controller P gain. Converts the difference between desired pitch angle and actual pitch angle into a pitch servo pwm change

Increment	Range
0.01	0.0 to 3.0

PITCH2SRV_I: Pitch axis controller I gain

Pitch axis controller I gain. Corrects long-term difference in desired pitch angle vs actual pitch angle

Increment	Range
0.01	0.0 to 3.0

PITCH2SRV_IMAX: Pitch axis controller I gain maximum

Pitch axis controller I gain maximum. Constrains the maximum pwm change that the I gain will output

Increment	Range	Units
10	0 to 4000	decipercent

PITCH2SRV_D: Pitch axis controller D gain

Pitch axis controller D gain. Compensates for short-term change in desired pitch angle vs actual pitch angle

Increment	Range
0.001	0.001 to 0.1

PITCH2SRV_FF: Pitch axis controller feed forward

Pitch axis controller feed forward

Increment	Range
0.001	0 to 0.5

PITCH2SRV_FLTT: Pitch axis controller target frequency in Hz

Pitch axis controller target frequency in Hz

Increment	Range	Units
1	1 to 50	hertz

PITCH2SRV_FLTE: Pitch axis controller error frequency in Hz

Pitch axis controller error frequency in Hz

Increment	Range	Units
1	1 to 100	hertz

PITCH2SRV_FLTD: Pitch axis controller derivative frequency in Hz

Pitch axis controller derivative frequency in Hz

Increment	Range	Units
1	1 to 100	hertz

PITCH2SRV_SMAX: Pitch slew rate limit

Note: This parameter is for advanced users

Sets an upper limit on the slew rate produced by the combined P and D gains. If the amplitude of the control action produced by the rate feedback exceeds this value, then the D+P gain is reduced to respect the limit. This limits the amplitude of high frequency oscillations caused by an excessive gain. The limit should be set to no more than 25% of the actuators maximum slew rate to allow for load effects. Note: The gain will not be reduced to less than 10% of the nominal value. A value of zero will disable this feature.

Increment	Range
0.5	0 to 200

YAW2SRV_P: Yaw axis controller P gain

Yaw axis controller P gain. Converts the difference between desired yaw angle (heading) and actual yaw angle into a yaw servo pwm change

Increment	Range
0.01	0.0 to 3.0

YAW2SRV_I: Yaw axis controller I gain

Yaw axis controller I gain. Corrects long-term difference in desired yaw angle (heading) vs actual yaw angle

Increment	Range
0.01	0.0 to 3.0

YAW2SRV_IMAX: Yaw axis controller I gain maximum

Yaw axis controller I gain maximum. Constrains the maximum pwm change that the I gain will output

Increment	Range	Units
10	0 to 4000	decipercent

YAW2SRV_D: Yaw axis controller D gain

Yaw axis controller D gain. Compensates for short-term change in desired yaw angle (heading) vs actual yaw angle

Increment	Range
0.001	0.001 to 0.1

YAW2SRV_FF: Yaw axis controller feed forward

Yaw axis controller feed forward

Increment	Range
0.001	0 to 0.5

YAW2SRV_FLTT: Yaw axis controller target frequency in Hz

Yaw axis controller target frequency in Hz

Increment	Range	Units
1	1 to 50	hertz

YAW2SRV_FLTE: Yaw axis controller error frequency in Hz

Yaw axis controller error frequency in Hz

Increment	Range	Units
1	1 to 100	hertz

YAW2SRV_FLTD: Yaw axis controller derivative frequency in Hz

Yaw axis controller derivative frequency in Hz

Increment	Range	Units
1	1 to 100	hertz

YAW2SRV_SMAX: Yaw slew rate limit

Note: This parameter is for advanced users

Sets an upper limit on the slew rate produced by the combined P and D gains. If the amplitude of the control action produced by the rate feedback exceeds this value, then the D+P gain is reduced to respect the limit. This limits the amplitude of high frequency oscillations caused by an excessive gain. The limit should be set to no more than 25% of the actuators maximum slew rate to allow for load effects. Note: The gain will not be reduced to less than 10% of the nominal value. A value of zero will disable this feature.

Increment	Range
0.5	0 to 200

CMD_TOTAL: Number of loaded mission items

Note: This parameter is for advanced users

Set to 1 if HOME location has been loaded by the ground station. Do not change this manually.

Range
1 to 255

GCS_PID_MASK: GCS PID tuning mask

Note: This parameter is for advanced users

bitmask of PIDs to send MAVLink PID_TUNING messages for

Bitmask	Values
Bit Meaning 0 Pitch 1 Yaw	Value Meaning 0 None 1 Pitch 2 Yaw

SCAN_SPEED_YAW: Speed at which to rotate the yaw axis in scan mode

This controls how rapidly the tracker will move the servos in SCAN mode

Increment	Range	Units
1	0 to 100	degrees per second

SCAN_SPEED_PIT: Speed at which to rotate pitch axis in scan mode

This controls how rapidly the tracker will move the servos in SCAN mode

Increment	Range	Units
1	0 to 100	degrees per second

INITIAL_MODE: Mode tracker will switch into after initialization

0:MANUAL, 1:STOP, 2:SCAN, 10:AUTO

SAFE_DISARM_PWM: PWM that will be output when disarmed or in stop mode

0:zero pwm, 1:trim pwm

AUTO_OPTIONS: Auto mode options

1: Scan for unknown target

Bitmask	Values
Bit Meaning 0 Scan for unknown target	Value Meaning 0 None 1 Scan for unknown target in auto mode

AHRS_ Parameters

AHRS_GPS_GAIN: AHRS GPS gain

Note: This parameter is for advanced users

This controls how much to use the GPS to correct the attitude. This should never be set to zero for a plane as it would result in the plane losing control in turns. For a plane please use the default value of 1.0.

Increment	Range
.01	0.0 to 1.0

AHRS_GPS_USE: AHRS use GPS for DCM navigation and position-down

Note: This parameter is for advanced users

This controls whether to use dead-reckoning or GPS based navigation. If set to 0 then the GPS won't be used for navigation, and only dead reckoning will be used. A value of zero should never be used for normal flight. Currently this affects only the DCM-based AHRS: the EKF uses GPS according to its own parameters. A value of 2 means to use GPS for height as well as position - both in DCM estimation and when determining altitude-above-home.

Values
Value Meaning 0 Disabled 1 Use GPS for DCM position 2 Use GPS for DCM position and height

AHRS_YAW_P: Yaw P

Note: This parameter is for advanced users

This controls the weight the compass or GPS has on the heading. A higher value means the heading will track the yaw source (GPS or compass) more rapidly.

Increment	Range
.01	0.1 to 0.4

AHRS_RP_P: AHRS RP_P

Note: This parameter is for advanced users

This controls how fast the accelerometers correct the attitude

Increment	Range
.01	0.1 to 0.4

AHRS_WIND_MAX: Maximum wind

Note: This parameter is for advanced users

This sets the maximum allowable difference between ground speed and airspeed. This allows the plane to cope with a failing airspeed sensor. A value of zero means to use the airspeed as is. See ARSPD_OPTIONS and ARSPD_MAX_WIND to disable airspeed sensors.

Increment	Range	Units
1	0 to 127	meters per second

AHRS_TRIM_X: AHRS Trim Roll

Compensates for the roll angle difference between the control board and the frame. Positive values make the vehicle roll right.

Increment	Range	Units
0.01	-0.1745 to +0.1745	radians

AHRS_TRIM_Y: AHRS Trim Pitch

Compensates for the pitch angle difference between the control board and the frame. Positive values make the vehicle pitch up/back.

Increment	Range	Units
0.01	-0.1745 to +0.1745	radians

AHRS_TRIM_Z: AHRS Trim Yaw

Note: This parameter is for advanced users

Not Used

Increment	Range	Units
0.01	-0.1745 to +0.1745	radians

AHRS_ORIENTATION: Board Orientation

Note: This parameter is for advanced users

Overall board orientation relative to the standard orientation for the board type. This rotates the IMU and compass readings to allow the board to be oriented in your vehicle at any 90 or 45 degree angle. The label for each option is specified in the order of rotations for that orientation. This option takes affect on next boot. After changing you will need to re-level your vehicle. Firmware versions 4.2 and prior can use a CUSTOM (100) rotation to set the AHRS_CUSTOM_ROLL/PIT/YAW angles for AHRS orientation. Later versions provide two general custom rotations which can be used, Custom 1 and Custom 2, with CUST_ROT1_ROLL/PIT/YAW or CUST_ROT2_ROLL/PIT/YAW angles.

Values

Value Meaning 0 None 1 Yaw45 2 Yaw90 3 Yaw135 4 Yaw180 5 Yaw225 6 Yaw270 7 Yaw315 8 Roll180 9 Yaw45Roll180 10 Yaw90Roll180 11 Yaw135Roll180 12 Pitch180 13 Yaw225Roll180 14 Yaw270Roll180 15 Yaw315Roll180 16 Roll90 17 Yaw45Roll90 18 Yaw90Roll90 19 Yaw135Roll90 20 Roll270 21 Yaw45Roll270 22 Yaw90Roll270 23 Yaw135Roll270 24 Pitch90 25 Pitch270 26 Yaw90Pitch180 27 Yaw270Pitch180 28 Pitch90Roll90 29 Pitch90Roll180 30 Pitch90Roll270 31 Pitch180Roll90 32 Pitch180Roll270 33 Pitch270Roll90 34 Pitch270Roll180 35 Pitch270Roll270 36 Yaw90Pitch180Roll90 37 Yaw270Roll90 38 Yaw293Pitch68Roll180 39 Pitch315 40 Pitch315Roll90 42 Roll45 43 Roll315 100 Custom 4.1 and older 101 Custom 1 102 Custom 2

AHRS_COMP_BETA: AHRS Velocity Complementary Filter Beta Coefficient

Note: This parameter is for advanced users

This controls the time constant for the cross-over frequency used to fuse AHRS (airspeed and heading) and GPS data to estimate ground velocity. Time constant is 0.1/beta. A larger time constant will use GPS data less and a small time constant will use air data less.

Increment	Range
.01	0.001 to 0.5

AHRS_GPS_MINSATS: AHRS GPS Minimum satellites

Note: This parameter is for advanced users

Minimum number of satellites visible to use GPS for velocity based corrections attitude correction. This defaults to 6, which is about the point at which the velocity numbers from a GPS become too unreliable for accurate correction of the accelerometers.

Increment	Range
1	0 to 10

AHRS_EKF_TYPE: Use NavEKF Kalman filter for attitude and position estimation

Note: This parameter is for advanced users

This controls which NavEKF Kalman filter version is used for attitude and position estimation

Values
Value Meaning 0 Disabled 2 Enable EKF2 3 Enable EKF3 11 ExternalAHRS

AHRS_CUSTOM_ROLL: Board orientation roll offset

Note: This parameter is for advanced users

Autopilot mounting position roll offset. Positive values = roll right, negative values = roll left. This parameter is only used when AHRS_ORIENTATION is set to CUSTOM.

Increment	Range	Units
1	-180 to 180	degrees

AHRS_CUSTOM_PIT: Board orientation pitch offset

Note: This parameter is for advanced users

Autopilot mounting position pitch offset. Positive values = pitch up, negative values = pitch down. This parameter is only used when AHRS_ORIENTATION is set to CUSTOM.

Increment	Range	Units
1	-180 to 180	degrees

AHRS_CUSTOM_YAW: Board orientation yaw offset

Note: This parameter is for advanced users

Autopilot mounting position yaw offset. Positive values = yaw right, negative values = yaw left. This parameter is only used when AHRS_ORIENTATION is set to CUSTOM.

Increment	Range	Units
1	-180 to 180	degrees

AIS_ Parameters

AIS_TYPE: AIS receiver type

Note: Reboot required after change

AIS receiver type

Values
Value Meaning 0 None 1 NMEA AIVDM message

AIS_LIST_MAX: AIS vessel list size

Note: This parameter is for advanced users

AIS list size of nearest vessels. Longer lists take longer to refresh with lower SRx_ADSB values.

Range
1 to 100

AIS_TIME_OUT: AIS vessel time out

Note: This parameter is for advanced users

if no updates are received in this time a vessel will be removed from the list

Range	Units
1 to 2000	seconds

AIS_LOGGING: AIS logging options

Note: This parameter is for advanced users

Bitmask of AIS logging options

Bitmask
Bit Meaning 0 Log all AIVDM messages 1 Log only unsupported AIVDM messages 2 Log decoded messages

ARSPD Parameters

ARSPD_TYPE: Airspeed type

Type of airspeed sensor

Values
Value Meaning 0 None 1 I2C-MS4525D0 2 Analog 3 I2C-MS5525 4 I2C-MS5525 (0x76) 5 I2C-MS5525 (0x77) 6 I2C-SDP3X 7 I2C-DLVR-5in 8 DroneCAN 9 I2C-DLVR-10in 10 I2C-DLVR-20in 11 I2C-DLVR-30in 12 I2C-DLVR-60in 13 NMEA water speed 14 MSP 15 ASP5033 100 SITL

ARSPD_DEVID: Airspeed ID

Note: This parameter is for advanced users

Airspeed sensor ID, taking into account its type, bus and instance

ReadOnly
True

ARSPD_USE: Airspeed use

Enables airspeed use for automatic throttle modes and replaces control from THR_TRIM. Continues to display and log airspeed if set to 0. Uses airspeed for control if set to 1. Only uses airspeed when throttle = 0 if set to 2 (useful for gliders with airspeed sensors behind propellers).

Values
Value Meaning 0 DoNotUse 1 Use 2 UseWhenZeroThrottle

ARSPD_OFFSET: Airspeed offset

Note: This parameter is for advanced users

Airspeed calibration offset

Increment
0.1

ARSPD_RATIO: Airspeed ratio

Note: This parameter is for advanced users

Calibrates pitot tube pressure to velocity. Increasing this value will indicate a higher airspeed at any given dynamic pressure.

Increment
0.1

ARSPD_PIN: Airspeed pin

Note: This parameter is for advanced users

The pin number that the airspeed sensor is connected to for analog sensors. Set to 15 on the Pixhawk for the analog airspeed port.

ARSPD_AUTOCAL: Automatic airspeed ratio calibration

Note: This parameter is for advanced users

Enables automatic adjustment of ARSPD_RATIO during a calibration flight based on estimation of ground speed and true airspeed. New ratio saved every 2 minutes if change is > 5%. Should not be left enabled.

ARSPD_TUBE_ORDER: Control pitot tube order

Note: This parameter is for advanced users

This parameter allows you to control whether the order in which the tubes are attached to your pitot tube matters. If you set this to 0 then the first (often the top) connector on the sensor needs to be the stagnation pressure (the pressure at the tip of the pitot tube). If set to 1 then the second (often the bottom) connector needs to be the stagnation pressure. If set to 2 (the default) then the airspeed driver will accept either order. The reason you may wish to specify the order is it will allow your airspeed sensor to detect if the aircraft is receiving excessive pressure on the static port compared to the stagnation port such as during a stall, which would otherwise be seen as a positive airspeed.

Values
Value Meaning 0 Normal 1 Swapped 2 Auto Detect

ARSPD_SKIP_CAL: Skip airspeed offset calibration on startup

Note: This parameter is for advanced users

This parameter allows you to skip airspeed offset calibration on startup, instead using the offset from the last calibration. This may be desirable if the offset variance between flights for your sensor is low and you want to avoid having to cover the pitot tube on each boot.

Values
Value Meaning 0 Disable 1 Enable

ARSPD_PSI_RANGE: The PSI range of the device

Note: This parameter is for advanced users

This parameter allows you to set the PSI (pounds per square inch) range for your sensor. You should not change this unless you examine the datasheet for your device

ARSPD_BUS: Airspeed I2C bus

Note: This parameter is for advanced users

Bus number of the I2C bus where the airspeed sensor is connected

Values
Value Meaning 0 Bus0(internal) 1 Bus1(external) 2 Bus2(auxiliary)

ARSPD_PRIMARY: Primary airspeed sensor

Note: This parameter is for advanced users

This selects which airspeed sensor will be the primary if multiple sensors are found

Values
Value Meaning 0 FirstSensor 1 2ndSensor

ARSPD_OPTIONS: Airspeed options bitmask

Note: This parameter is for advanced users

Bitmask of options to use with airspeed. 0:Disable use based on airspeed/groundspeed mismatch (see ARSPD_WIND_MAX), 1:Automatically reenable use based on airspeed/groundspeed mismatch recovery (see ARSPD_WIND_MAX) 2:Disable voltage correction, 3:Check that the airspeed is statistically consistent with the navigation EKF vehicle and wind velocity estimates using EKF3 (requires AHRS_EKF_TYPE = 3)

Bitmask
Bit Meaning 0 SpeedMismatchDisable 1 AllowSpeedMismatchRecovery 2 DisableVoltageCorrection 3 UseEkf3Consistency

ARSPD_WIND_MAX: Maximum airspeed and ground speed difference

Note: This parameter is for advanced users

If the difference between airspeed and ground speed is greater than this value the sensor will be marked unhealthy. Using ARSPD_OPTION this health value can be used to disable the sensor.

Units
meters per second

ARSPD_WIND_WARN: Airspeed and ground speed difference that gives a warning

Note: This parameter is for advanced users

If the difference between airspeed and ground speed is greater than this value the sensor will issue a warning. If 0 ARSPD_WIND_MAX is used.

Units
meters per second

ARSPD_WIND_GATE: Re-enable Consistency Check Gate Size

Note: This parameter is for advanced users

Number of standard deviations applied to the re-enable EKF consistency check that is used when ARSPD_OPTIONS bit position 3 is set. Larger values will make the re-enabling of the airspeed sensor faster, but increase the likelihood of re-enabling a degraded sensor. The value can be tuned by using the ARSP.TR log message by setting ARSP_WIND_GATE to a value that is higher than the value for ARSP.TR observed with a healthy airspeed sensor. Occasional transients in ARSP.TR above the value set by ARSP_WIND_GATE can be tolerated provided they are less than 5 seconds in duration and less than 10% duty cycle.

Range
0.0 to 10.0

ARSPD2_TYPE: Second Airspeed type

Type of 2nd airspeed sensor

Values
Value Meaning 0 None 1 I2C-MS4525D0 2 Analog 3 I2C-MS5525 4 I2C-MS5525 (0x76) 5 I2C-MS5525 (0x77) 6 I2C-SDP3X 7 I2C-DLVR-5in 8 DroneCAN 9 I2C-DLVR-10in 10 I2C-DLVR-20in 11 I2C-DLVR-30in 12 I2C-DLVR-60in 13 NMEA water speed 14 MSP 15 ASP5033

ARSPD2_USE: Enable use of 2nd airspeed sensor

use airspeed for flight control. When set to 0 airspeed sensor can be logged and displayed on a GCS but won't be used for flight. When set to 1 it will be logged and used. When set to 2 it will be only used when the throttle is zero, which can be useful in gliders with airspeed sensors behind a propeller

Values
Value Meaning 0 Don’t Use 1 use 2 UseWhenZeroThrottle

ARSPD2_OFFSET: Airspeed offset for 2nd airspeed sensor

Note: This parameter is for advanced users

Airspeed calibration offset

Increment
0.1

ARSPD2_RATIO: Airspeed ratio for 2nd airspeed sensor

Note: This parameter is for advanced users

Airspeed calibration ratio

Increment
0.1

ARSPD2_PIN: Airspeed pin for 2nd airspeed sensor

Note: This parameter is for advanced users

Pin number indicating location of analog airspeed sensors. Pixhawk/Cube if set to 15.

ARSPD2_AUTOCAL: Automatic airspeed ratio calibration for 2nd airspeed sensor

Note: This parameter is for advanced users

If this is enabled then the autopilot will automatically adjust the ARSPD_RATIO during flight, based upon an estimation filter using ground speed and true airspeed. The automatic calibration will save the new ratio to EEPROM every 2 minutes if it changes by more than 5%. This option should be enabled for a calibration flight then disabled again when calibration is complete. Leaving it enabled all the time is not recommended.

ARSPD2_TUBE_ORDR: Control pitot tube order of 2nd airspeed sensor

Note: This parameter is for advanced users

This parameter allows you to control whether the order in which the tubes are attached to your pitot tube matters. If you set this to 0 then the first (often the top) connector on the sensor needs to be the stagnation pressure (the pressure at the tip of the pitot tube). If set to 1 then the second (often the bottom) connector needs to be the stagnation pressure. If set to 2 (the default) then the airspeed driver will accept either order. The reason you may wish to specify the order is it will allow your airspeed sensor to detect if the aircraft is receiving excessive pressure on the static port compared to the stagnation port such as during a stall, which would otherwise be seen as a positive airspeed.

Values
Value Meaning 0 Normal 1 Swapped 2 Auto Detect

ARSPD2_SKIP_CAL: Skip airspeed offset calibration on startup for 2nd sensor

Note: This parameter is for advanced users

This parameter allows you to skip airspeed offset calibration on startup, instead using the offset from the last calibration. This may be desirable if the offset variance between flights for your sensor is low and you want to avoid having to cover the pitot tube on each boot.

Values
Value Meaning 0 Disable 1 Enable

ARSPD2_PSI_RANGE: The PSI range of the device for 2nd sensor

Note: This parameter is for advanced users

This parameter allows you to set the PSI (pounds per square inch) range for your sensor. You should not change this unless you examine the datasheet for your device

ARSPD2_BUS: Airspeed I2C bus for 2nd sensor

Note: This parameter is for advanced users

The bus number of the I2C bus to look for the sensor on

Values
Value Meaning 0 Bus0(internal) 1 Bus1(external) 2 Bus2(auxiliary)

ARSPD2_DEVID: Airspeed2 ID

Note: This parameter is for advanced users

Airspeed2 sensor ID, taking into account its type, bus and instance

ReadOnly
True

BARO Parameters

BARO1_GND_PRESS: Ground Pressure

Note: This parameter is for advanced users

calibrated ground pressure in Pascals

Increment	ReadOnly	Units	Volatile
1	True	pascal	True

BARO_GND_TEMP: ground temperature

Note: This parameter is for advanced users

User provided ambient ground temperature in degrees Celsius. This is used to improve the calculation of the altitude the vehicle is at. This parameter is not persistent and will be reset to 0 every time the vehicle is rebooted. A value of 0 means use the internal measurement ambient temperature.

Increment	Units	Volatile
1	degrees Celsius	True

BARO_ALT_OFFSET: altitude offset

Note: This parameter is for advanced users

altitude offset in meters added to barometric altitude. This is used to allow for automatic adjustment of the base barometric altitude by a ground station equipped with a barometer. The value is added to the barometric altitude read by the aircraft. It is automatically reset to 0 when the barometer is calibrated on each reboot or when a preflight calibration is performed.

Increment	Units
0.1	meters

BARO_PRIMARY: Primary barometer

Note: This parameter is for advanced users

This selects which barometer will be the primary if multiple barometers are found

Values
Value Meaning 0 FirstBaro 1 2ndBaro 2 3rdBaro

BARO_EXT_BUS: External baro bus

Note: This parameter is for advanced users

This selects the bus number for looking for an I2C barometer. When set to -1 it will probe all external i2c buses based on the GND_PROBE_EXT parameter.

Values
Value Meaning -1 Disabled 0 Bus0 1 Bus1

BARO2_GND_PRESS: Ground Pressure

Note: This parameter is for advanced users

calibrated ground pressure in Pascals

Increment	ReadOnly	Units	Volatile
1	True	pascal	True

BARO3_GND_PRESS: Absolute Pressure

Note: This parameter is for advanced users

calibrated ground pressure in Pascals

Increment	ReadOnly	Units	Volatile
1	True	pascal	True

BARO_FLTR_RNG: Range in which sample is accepted

This sets the range around the average value that new samples must be within to be accepted. This can help reduce the impact of noise on sensors that are on long I2C cables. The value is a percentage from the average value. A value of zero disables this filter.

Increment	Range	Units
1	0 to 100	percent

BARO_PROBE_EXT: External barometers to probe

Note: This parameter is for advanced users

This sets which types of external i2c barometer to look for. It is a bitmask of barometer types. The I2C buses to probe is based on GND_EXT_BUS. If BARO_EXT_BUS is -1 then it will probe all external buses, otherwise it will probe just the bus number given in GND_EXT_BUS.

Bitmask
Bit Meaning 0 BMP085 1 BMP280 2 MS5611 3 MS5607 4 MS5637 5 FBM320 6 DPS280 7 LPS25H 8 Keller 9 MS5837 10 BMP388 11 SPL06 12 MSP

BARO1_DEVID: Baro ID

Note: This parameter is for advanced users

Barometer sensor ID, taking into account its type, bus and instance

ReadOnly
True

BARO2_DEVID: Baro ID2

Note: This parameter is for advanced users

Barometer2 sensor ID, taking into account its type, bus and instance

ReadOnly
True

BARO3_DEVID: Baro ID3

Note: This parameter is for advanced users

Barometer3 sensor ID, taking into account its type, bus and instance

ReadOnly
True

BARO_FIELD_ELV: field elevation

Note: This parameter is for advanced users

User provided field elevation in meters. This is used to improve the calculation of the altitude the vehicle is at. This parameter is not persistent and will be reset to 0 every time the vehicle is rebooted. A value of 0 means no correction for takeoff height above sea level is performed.

Increment	Units	Volatile
0.1	meters	True

BARO1_WCF_ Parameters

BARO1_WCF_ENABLE: Wind coefficient enable

Note: This parameter is for advanced users

This enables the use of wind coefficients for barometer compensation

Values
Value Meaning 0 Disabled 1 Enabled

BARO1_WCF_FWD: Pressure error coefficient in positive X direction (forward)

Note: This parameter is for advanced users

This is the ratio of static pressure error to dynamic pressure generated by a positive wind relative velocity along the X body axis. If the baro height estimate rises during forwards flight, then this will be a negative number. Multirotors can use this feature only if using EKF3 and if the EK3_DRAG_BCOEF_X and EK3_DRAG_BCOEF_Y parameters have been tuned.

Increment	Range
0.05	-1.0 to 1.0

BARO1_WCF_BCK: Pressure error coefficient in negative X direction (backwards)

Note: This parameter is for advanced users

This is the ratio of static pressure error to dynamic pressure generated by a negative wind relative velocity along the X body axis. If the baro height estimate rises during backwards flight, then this will be a negative number. Multirotors can use this feature only if using EKF3 and if the EK3_DRAG_BCOEF_X and EK3_DRAG_BCOEF_Y parameters have been tuned.

Increment	Range
0.05	-1.0 to 1.0

BARO1_WCF_RGT: Pressure error coefficient in positive Y direction (right)

Note: This parameter is for advanced users

This is the ratio of static pressure error to dynamic pressure generated by a positive wind relative velocity along the Y body axis. If the baro height estimate rises during sideways flight to the right, then this should be a negative number. Multirotors can use this feature only if using EKF3 and if the EK3_DRAG_BCOEF_X and EK3_DRAG_BCOEF_Y parameters have been tuned.

Increment	Range
0.05	-1.0 to 1.0

BARO1_WCF_LFT: Pressure error coefficient in negative Y direction (left)

Note: This parameter is for advanced users

This is the ratio of static pressure error to dynamic pressure generated by a negative wind relative velocity along the Y body axis. If the baro height estimate rises during sideways flight to the left, then this should be a negative number. Multirotors can use this feature only if using EKF3 and if the EK3_DRAG_BCOEF_X and EK3_DRAG_BCOEF_Y parameters have been tuned.

Increment	Range
0.05	-1.0 to 1.0

BARO2_WCF_ Parameters

BARO2_WCF_ENABLE: Wind coefficient enable

Note: This parameter is for advanced users

This enables the use of wind coefficients for barometer compensation

Values
Value Meaning 0 Disabled 1 Enabled

BARO2_WCF_FWD: Pressure error coefficient in positive X direction (forward)

Note: This parameter is for advanced users

This is the ratio of static pressure error to dynamic pressure generated by a positive wind relative velocity along the X body axis. If the baro height estimate rises during forwards flight, then this will be a negative number. Multirotors can use this feature only if using EKF3 and if the EK3_DRAG_BCOEF_X and EK3_DRAG_BCOEF_Y parameters have been tuned.

Increment	Range
0.05	-1.0 to 1.0

BARO2_WCF_BCK: Pressure error coefficient in negative X direction (backwards)

Note: This parameter is for advanced users

This is the ratio of static pressure error to dynamic pressure generated by a negative wind relative velocity along the X body axis. If the baro height estimate rises during backwards flight, then this will be a negative number. Multirotors can use this feature only if using EKF3 and if the EK3_DRAG_BCOEF_X and EK3_DRAG_BCOEF_Y parameters have been tuned.

Increment	Range
0.05	-1.0 to 1.0

BARO2_WCF_RGT: Pressure error coefficient in positive Y direction (right)

Note: This parameter is for advanced users

This is the ratio of static pressure error to dynamic pressure generated by a positive wind relative velocity along the Y body axis. If the baro height estimate rises during sideways flight to the right, then this should be a negative number. Multirotors can use this feature only if using EKF3 and if the EK3_DRAG_BCOEF_X and EK3_DRAG_BCOEF_Y parameters have been tuned.

Increment	Range
0.05	-1.0 to 1.0

BARO2_WCF_LFT: Pressure error coefficient in negative Y direction (left)

Note: This parameter is for advanced users

This is the ratio of static pressure error to dynamic pressure generated by a negative wind relative velocity along the Y body axis. If the baro height estimate rises during sideways flight to the left, then this should be a negative number. Multirotors can use this feature only if using EKF3 and if the EK3_DRAG_BCOEF_X and EK3_DRAG_BCOEF_Y parameters have been tuned.

Increment	Range
0.05	-1.0 to 1.0

BARO3_WCF_ Parameters

BARO3_WCF_ENABLE: Wind coefficient enable

Note: This parameter is for advanced users

This enables the use of wind coefficients for barometer compensation

Values
Value Meaning 0 Disabled 1 Enabled

BARO3_WCF_FWD: Pressure error coefficient in positive X direction (forward)

Note: This parameter is for advanced users

This is the ratio of static pressure error to dynamic pressure generated by a positive wind relative velocity along the X body axis. If the baro height estimate rises during forwards flight, then this will be a negative number. Multirotors can use this feature only if using EKF3 and if the EK3_DRAG_BCOEF_X and EK3_DRAG_BCOEF_Y parameters have been tuned.

Increment	Range
0.05	-1.0 to 1.0

BARO3_WCF_BCK: Pressure error coefficient in negative X direction (backwards)

Note: This parameter is for advanced users

This is the ratio of static pressure error to dynamic pressure generated by a negative wind relative velocity along the X body axis. If the baro height estimate rises during backwards flight, then this will be a negative number. Multirotors can use this feature only if using EKF3 and if the EK3_DRAG_BCOEF_X and EK3_DRAG_BCOEF_Y parameters have been tuned.

Increment	Range
0.05	-1.0 to 1.0

BARO3_WCF_RGT: Pressure error coefficient in positive Y direction (right)

Note: This parameter is for advanced users

This is the ratio of static pressure error to dynamic pressure generated by a positive wind relative velocity along the Y body axis. If the baro height estimate rises during sideways flight to the right, then this should be a negative number. Multirotors can use this feature only if using EKF3 and if the EK3_DRAG_BCOEF_X and EK3_DRAG_BCOEF_Y parameters have been tuned.

Increment	Range
0.05	-1.0 to 1.0

BARO3_WCF_LFT: Pressure error coefficient in negative Y direction (left)

Note: This parameter is for advanced users

This is the ratio of static pressure error to dynamic pressure generated by a negative wind relative velocity along the Y body axis. If the baro height estimate rises during sideways flight to the left, then this should be a negative number. Multirotors can use this feature only if using EKF3 and if the EK3_DRAG_BCOEF_X and EK3_DRAG_BCOEF_Y parameters have been tuned.

Increment	Range
0.05	-1.0 to 1.0

BATT2_ Parameters

BATT2_MONITOR: Battery monitoring

Note: Reboot required after change

Controls enabling monitoring of the battery's voltage and current

Values
Value Meaning 0 Disabled 3 Analog Voltage Only 4 Analog Voltage and Current 5 Solo 6 Bebop 7 SMBus-Generic 8 DroneCAN-BatteryInfo 9 ESC 10 Sum Of Selected Monitors 11 FuelFlow 12 FuelLevelPWM 13 SMBUS-SUI3 14 SMBUS-SUI6 15 NeoDesign 16 SMBus-Maxell 17 Generator-Elec 18 Generator-Fuel 19 Rotoye 20 MPPT 21 INA2XX 22 LTC2946 23 Torqeedo 24 FuelLevelAnalog

BATT2_CAPACITY: Battery capacity

Capacity of the battery in mAh when full

Increment	Units
50	milliampere hour

BATT2_SERIAL_NUM: Battery serial number

Note: This parameter is for advanced users

Battery serial number, automatically filled in for SMBus batteries, otherwise will be -1. With DroneCan it is the battery_id.

BATT2_LOW_TIMER: Low voltage timeout

Note: This parameter is for advanced users

This is the timeout in seconds before a low voltage event will be triggered. For aircraft with low C batteries it may be necessary to raise this in order to cope with low voltage on long takeoffs. A value of zero disables low voltage errors.

Increment	Range	Units
1	0 to 120	seconds

BATT2_FS_VOLTSRC: Failsafe voltage source

Note: This parameter is for advanced users

Voltage type used for detection of low voltage event

Values
Value Meaning 0 Raw Voltage 1 Sag Compensated Voltage

BATT2_LOW_VOLT: Low battery voltage

Battery voltage that triggers a low battery failsafe. Set to 0 to disable. If the battery voltage drops below this voltage continuously for more then the period specified by the BATT2_LOW_TIMER parameter then the vehicle will perform the failsafe specified by the BATT2_FS_LOW_ACT parameter.

Increment	Units
0.1	volt

BATT2_LOW_MAH: Low battery capacity

Battery capacity at which the low battery failsafe is triggered. Set to 0 to disable battery remaining failsafe. If the battery capacity drops below this level the vehicle will perform the failsafe specified by the BATT2_FS_LOW_ACT parameter.

Increment	Units
50	milliampere hour

BATT2_CRT_VOLT: Critical battery voltage

Battery voltage that triggers a critical battery failsafe. Set to 0 to disable. If the battery voltage drops below this voltage continuously for more then the period specified by the BATT2_LOW_TIMER parameter then the vehicle will perform the failsafe specified by the BATT2_FS_CRT_ACT parameter.

Increment	Units
0.1	volt

BATT2_CRT_MAH: Battery critical capacity

Battery capacity at which the critical battery failsafe is triggered. Set to 0 to disable battery remaining failsafe. If the battery capacity drops below this level the vehicle will perform the failsafe specified by the BATT2__FS_CRT_ACT parameter.

Increment	Units
50	milliampere hour

BATT2_FS_LOW_ACT: Low battery failsafe action

What action the vehicle should perform if it hits a low battery failsafe

Values
Value Meaning 0 None

BATT2_FS_CRT_ACT: Critical battery failsafe action

What action the vehicle should perform if it hits a critical battery failsafe

Values
Value Meaning 0 None

BATT2_ARM_VOLT: Required arming voltage

Note: This parameter is for advanced users

Battery voltage level which is required to arm the aircraft. Set to 0 to allow arming at any voltage.

Increment	Units
0.1	volt

BATT2_ARM_MAH: Required arming remaining capacity

Note: This parameter is for advanced users

Battery capacity remaining which is required to arm the aircraft. Set to 0 to allow arming at any capacity. Note that execept for smart batteries rebooting the vehicle will always reset the remaining capacity estimate, which can lead to this check not providing sufficent protection, it is recommended to always use this in conjunction with the BATT2__ARM_VOLT parameter.

Increment	Units
50	milliampere hour

BATT2_OPTIONS: Battery monitor options

Note: This parameter is for advanced users

This sets options to change the behaviour of the battery monitor

Bitmask
Bit Meaning 0 Ignore DroneCAN SoC 1 MPPT reports input voltage and current 2 MPPT Powered off when disarmed 3 MPPT Powered on when armed 4 MPPT Powered off at boot 5 MPPT Powered on at boot 6 Send resistance compensated voltage to GCS

BATT2_VOLT_PIN: Battery Voltage sensing pin

Note: Reboot required after change

Sets the analog input pin that should be used for voltage monitoring.

Values
Value Meaning -1 Disabled 2 Pixhawk/Pixracer/Navio2/Pixhawk2_PM1 5 Navigator 13 Pixhawk2_PM2/CubeOrange_PM2 14 CubeOrange 16 Durandal 100 PX4-v1

BATT2_CURR_PIN: Battery Current sensing pin

Note: Reboot required after change

Sets the analog input pin that should be used for current monitoring.

Values
Value Meaning -1 Disabled 3 Pixhawk/Pixracer/Navio2/Pixhawk2_PM1 4 CubeOrange_PM2/Navigator 14 Pixhawk2_PM2 15 CubeOrange 17 Durandal 101 PX4-v1

BATT2_VOLT_MULT: Voltage Multiplier

Note: This parameter is for advanced users

Used to convert the voltage of the voltage sensing pin (BATT2_VOLT_PIN) to the actual battery's voltage (pin_voltage * VOLT_MULT). For the 3DR Power brick with a Pixhawk, this should be set to 10.1. For the Pixhawk with the 3DR 4in1 ESC this should be 12.02. For the PX using the PX4IO power supply this should be set to 1.

BATT2_AMP_PERVLT: Amps per volt

Number of amps that a 1V reading on the current sensor corresponds to. With a Pixhawk using the 3DR Power brick this should be set to 17. For the Pixhawk with the 3DR 4in1 ESC this should be 17.

Units
ampere per volt

BATT2_AMP_OFFSET: AMP offset

Voltage offset at zero current on current sensor

Units
volt

BATT2_VLT_OFFSET: Volage offset

Note: This parameter is for advanced users

Voltage offset on voltage pin. This allows for an offset due to a diode. This voltage is subtracted before the scaling is applied

Units
volt

BATT2_I2C_BUS: Battery monitor I2C bus number

Note: This parameter is for advanced users

Note: Reboot required after change

Battery monitor I2C bus number

Range
0 to 3

BATT2_I2C_ADDR: Battery monitor I2C address

Note: This parameter is for advanced users

Note: Reboot required after change

Battery monitor I2C address

Range
0 to 127

BATT2_SUM_MASK: Battery Sum mask

0: sum of remaining battery monitors, If none 0 sum of specified monitors. Current will be summed and voltages averaged.

Bitmask
Bit Meaning 0 monitor 1 1 monitor 2 2 monitor 3 3 monitor 4 4 monitor 5 5 monitor 6 6 monitor 7 7 monitor 8 8 monitor 9

BATT2_CURR_MULT: Scales reported power monitor current

Note: This parameter is for advanced users

Multiplier applied to all current related reports to allow for adjustment if no UAVCAN param access or current splitting applications

Range
.1 to 10

BATT2_FL_VLT_MIN: Empty fuel level voltage

Note: This parameter is for advanced users

The voltage seen on the analog pin when the fuel tank is empty. Note: For this type of battery monitor, the voltage seen by the analog pin is displayed as battery voltage on a GCS.

Range	Units
0.01 to 10	volt

BATT2_FL_V_MULT: Fuel level voltage multiplier

Note: This parameter is for advanced users

Voltage multiplier to determine what the full tank voltage reading is. This is calculated as 1 / (Voltage_Full - Voltage_Empty) Note: For this type of battery monitor, the voltage seen by the analog pin is displayed as battery voltage on a GCS.

Range
0.01 to 10

BATT2_FL_FLTR: Fuel level filter frequency

Note: This parameter is for advanced users

Note: Reboot required after change

Filter frequency in Hertz where a low pass filter is used. This is used to filter out tank slosh from the fuel level reading. A value of -1 disables the filter and unfiltered voltage is used to determine the fuel level. The suggested values at in the range of 0.2 Hz to 0.5 Hz.

Range	Units
-1 to 1	hertz

BATT2_FL_PIN: Fuel level analog pin number

Analog input pin that fuel level sensor is connected to. Airspeed ports can be used for Analog input. When using analog pin 103, the maximum value of the input in 3.3V.

Values
Value Meaning -1 Not Used 11 Pixracer 13 Pixhawk ADC4 14 Pixhawk ADC3 15 Pixhawk ADC6/Pixhawk2 ADC 103 Pixhawk SBUS

BATT3_ Parameters

BATT3_MONITOR: Battery monitoring

Note: Reboot required after change

Controls enabling monitoring of the battery's voltage and current

Values
Value Meaning 0 Disabled 3 Analog Voltage Only 4 Analog Voltage and Current 5 Solo 6 Bebop 7 SMBus-Generic 8 DroneCAN-BatteryInfo 9 ESC 10 Sum Of Selected Monitors 11 FuelFlow 12 FuelLevelPWM 13 SMBUS-SUI3 14 SMBUS-SUI6 15 NeoDesign 16 SMBus-Maxell 17 Generator-Elec 18 Generator-Fuel 19 Rotoye 20 MPPT 21 INA2XX 22 LTC2946 23 Torqeedo 24 FuelLevelAnalog

BATT3_CAPACITY: Battery capacity

Capacity of the battery in mAh when full

Increment	Units
50	milliampere hour

BATT3_SERIAL_NUM: Battery serial number

Note: This parameter is for advanced users

Battery serial number, automatically filled in for SMBus batteries, otherwise will be -1. With DroneCan it is the battery_id.

BATT3_LOW_TIMER: Low voltage timeout

Note: This parameter is for advanced users

This is the timeout in seconds before a low voltage event will be triggered. For aircraft with low C batteries it may be necessary to raise this in order to cope with low voltage on long takeoffs. A value of zero disables low voltage errors.

Increment	Range	Units
1	0 to 120	seconds

BATT3_FS_VOLTSRC: Failsafe voltage source

Note: This parameter is for advanced users

Voltage type used for detection of low voltage event

Values
Value Meaning 0 Raw Voltage 1 Sag Compensated Voltage

BATT3_LOW_VOLT: Low battery voltage

Battery voltage that triggers a low battery failsafe. Set to 0 to disable. If the battery voltage drops below this voltage continuously for more then the period specified by the BATT3_LOW_TIMER parameter then the vehicle will perform the failsafe specified by the BATT3_FS_LOW_ACT parameter.

Increment	Units
0.1	volt

BATT3_LOW_MAH: Low battery capacity

Battery capacity at which the low battery failsafe is triggered. Set to 0 to disable battery remaining failsafe. If the battery capacity drops below this level the vehicle will perform the failsafe specified by the BATT3_FS_LOW_ACT parameter.

Increment	Units
50	milliampere hour

BATT3_CRT_VOLT: Critical battery voltage

Battery voltage that triggers a critical battery failsafe. Set to 0 to disable. If the battery voltage drops below this voltage continuously for more then the period specified by the BATT3_LOW_TIMER parameter then the vehicle will perform the failsafe specified by the BATT3_FS_CRT_ACT parameter.

Increment	Units
0.1	volt

BATT3_CRT_MAH: Battery critical capacity

Battery capacity at which the critical battery failsafe is triggered. Set to 0 to disable battery remaining failsafe. If the battery capacity drops below this level the vehicle will perform the failsafe specified by the BATT3__FS_CRT_ACT parameter.

Increment	Units
50	milliampere hour

BATT3_FS_LOW_ACT: Low battery failsafe action

What action the vehicle should perform if it hits a low battery failsafe

Values
Value Meaning 0 None

BATT3_FS_CRT_ACT: Critical battery failsafe action

What action the vehicle should perform if it hits a critical battery failsafe

Values
Value Meaning 0 None

BATT3_ARM_VOLT: Required arming voltage

Note: This parameter is for advanced users

Battery voltage level which is required to arm the aircraft. Set to 0 to allow arming at any voltage.

Increment	Units
0.1	volt

BATT3_ARM_MAH: Required arming remaining capacity

Note: This parameter is for advanced users

Battery capacity remaining which is required to arm the aircraft. Set to 0 to allow arming at any capacity. Note that execept for smart batteries rebooting the vehicle will always reset the remaining capacity estimate, which can lead to this check not providing sufficent protection, it is recommended to always use this in conjunction with the BATT3__ARM_VOLT parameter.

Increment	Units
50	milliampere hour

BATT3_OPTIONS: Battery monitor options

Note: This parameter is for advanced users

This sets options to change the behaviour of the battery monitor

Bitmask
Bit Meaning 0 Ignore DroneCAN SoC 1 MPPT reports input voltage and current 2 MPPT Powered off when disarmed 3 MPPT Powered on when armed 4 MPPT Powered off at boot 5 MPPT Powered on at boot 6 Send resistance compensated voltage to GCS

BATT3_VOLT_PIN: Battery Voltage sensing pin

Note: Reboot required after change

Sets the analog input pin that should be used for voltage monitoring.

Values
Value Meaning -1 Disabled 2 Pixhawk/Pixracer/Navio2/Pixhawk2_PM1 5 Navigator 13 Pixhawk2_PM2/CubeOrange_PM2 14 CubeOrange 16 Durandal 100 PX4-v1

BATT3_CURR_PIN: Battery Current sensing pin

Note: Reboot required after change

Sets the analog input pin that should be used for current monitoring.

Values
Value Meaning -1 Disabled 3 Pixhawk/Pixracer/Navio2/Pixhawk2_PM1 4 CubeOrange_PM2/Navigator 14 Pixhawk2_PM2 15 CubeOrange 17 Durandal 101 PX4-v1

BATT3_VOLT_MULT: Voltage Multiplier

Note: This parameter is for advanced users

Used to convert the voltage of the voltage sensing pin (BATT3_VOLT_PIN) to the actual battery's voltage (pin_voltage * VOLT_MULT). For the 3DR Power brick with a Pixhawk, this should be set to 10.1. For the Pixhawk with the 3DR 4in1 ESC this should be 12.02. For the PX using the PX4IO power supply this should be set to 1.

BATT3_AMP_PERVLT: Amps per volt

Number of amps that a 1V reading on the current sensor corresponds to. With a Pixhawk using the 3DR Power brick this should be set to 17. For the Pixhawk with the 3DR 4in1 ESC this should be 17.

Units
ampere per volt

BATT3_AMP_OFFSET: AMP offset

Voltage offset at zero current on current sensor

Units
volt

BATT3_VLT_OFFSET: Volage offset

Note: This parameter is for advanced users

Voltage offset on voltage pin. This allows for an offset due to a diode. This voltage is subtracted before the scaling is applied

Units
volt

BATT3_I2C_BUS: Battery monitor I2C bus number

Note: This parameter is for advanced users

Note: Reboot required after change

Battery monitor I2C bus number

Range
0 to 3

BATT3_I2C_ADDR: Battery monitor I2C address

Note: This parameter is for advanced users

Note: Reboot required after change

Battery monitor I2C address

Range
0 to 127

BATT3_SUM_MASK: Battery Sum mask

0: sum of remaining battery monitors, If none 0 sum of specified monitors. Current will be summed and voltages averaged.

Bitmask
Bit Meaning 0 monitor 1 1 monitor 2 2 monitor 3 3 monitor 4 4 monitor 5 5 monitor 6 6 monitor 7 7 monitor 8 8 monitor 9

BATT3_CURR_MULT: Scales reported power monitor current

Note: This parameter is for advanced users

Multiplier applied to all current related reports to allow for adjustment if no UAVCAN param access or current splitting applications

Range
.1 to 10

BATT3_FL_VLT_MIN: Empty fuel level voltage

Note: This parameter is for advanced users

The voltage seen on the analog pin when the fuel tank is empty. Note: For this type of battery monitor, the voltage seen by the analog pin is displayed as battery voltage on a GCS.

Range	Units
0.01 to 10	volt

BATT3_FL_V_MULT: Fuel level voltage multiplier

Note: This parameter is for advanced users

Voltage multiplier to determine what the full tank voltage reading is. This is calculated as 1 / (Voltage_Full - Voltage_Empty) Note: For this type of battery monitor, the voltage seen by the analog pin is displayed as battery voltage on a GCS.

Range
0.01 to 10

BATT3_FL_FLTR: Fuel level filter frequency

Note: This parameter is for advanced users

Note: Reboot required after change

Filter frequency in Hertz where a low pass filter is used. This is used to filter out tank slosh from the fuel level reading. A value of -1 disables the filter and unfiltered voltage is used to determine the fuel level. The suggested values at in the range of 0.2 Hz to 0.5 Hz.

Range	Units
-1 to 1	hertz

BATT3_FL_PIN: Fuel level analog pin number

Analog input pin that fuel level sensor is connected to. Airspeed ports can be used for Analog input. When using analog pin 103, the maximum value of the input in 3.3V.

Values
Value Meaning -1 Not Used 11 Pixracer 13 Pixhawk ADC4 14 Pixhawk ADC3 15 Pixhawk ADC6/Pixhawk2 ADC 103 Pixhawk SBUS

BATT4_ Parameters

BATT4_MONITOR: Battery monitoring

Note: Reboot required after change

Controls enabling monitoring of the battery's voltage and current

Values
Value Meaning 0 Disabled 3 Analog Voltage Only 4 Analog Voltage and Current 5 Solo 6 Bebop 7 SMBus-Generic 8 DroneCAN-BatteryInfo 9 ESC 10 Sum Of Selected Monitors 11 FuelFlow 12 FuelLevelPWM 13 SMBUS-SUI3 14 SMBUS-SUI6 15 NeoDesign 16 SMBus-Maxell 17 Generator-Elec 18 Generator-Fuel 19 Rotoye 20 MPPT 21 INA2XX 22 LTC2946 23 Torqeedo 24 FuelLevelAnalog

BATT4_CAPACITY: Battery capacity

Capacity of the battery in mAh when full

Increment	Units
50	milliampere hour

BATT4_SERIAL_NUM: Battery serial number

Note: This parameter is for advanced users

Battery serial number, automatically filled in for SMBus batteries, otherwise will be -1. With DroneCan it is the battery_id.

BATT4_LOW_TIMER: Low voltage timeout

Note: This parameter is for advanced users

This is the timeout in seconds before a low voltage event will be triggered. For aircraft with low C batteries it may be necessary to raise this in order to cope with low voltage on long takeoffs. A value of zero disables low voltage errors.

Increment	Range	Units
1	0 to 120	seconds

BATT4_FS_VOLTSRC: Failsafe voltage source

Note: This parameter is for advanced users

Voltage type used for detection of low voltage event

Values
Value Meaning 0 Raw Voltage 1 Sag Compensated Voltage

BATT4_LOW_VOLT: Low battery voltage

Battery voltage that triggers a low battery failsafe. Set to 0 to disable. If the battery voltage drops below this voltage continuously for more then the period specified by the BATT4_LOW_TIMER parameter then the vehicle will perform the failsafe specified by the BATT4_FS_LOW_ACT parameter.

Increment	Units
0.1	volt

BATT4_LOW_MAH: Low battery capacity

Battery capacity at which the low battery failsafe is triggered. Set to 0 to disable battery remaining failsafe. If the battery capacity drops below this level the vehicle will perform the failsafe specified by the BATT4_FS_LOW_ACT parameter.

Increment	Units
50	milliampere hour

BATT4_CRT_VOLT: Critical battery voltage

Battery voltage that triggers a critical battery failsafe. Set to 0 to disable. If the battery voltage drops below this voltage continuously for more then the period specified by the BATT4_LOW_TIMER parameter then the vehicle will perform the failsafe specified by the BATT4_FS_CRT_ACT parameter.

Increment	Units
0.1	volt

BATT4_CRT_MAH: Battery critical capacity

Battery capacity at which the critical battery failsafe is triggered. Set to 0 to disable battery remaining failsafe. If the battery capacity drops below this level the vehicle will perform the failsafe specified by the BATT4__FS_CRT_ACT parameter.

Increment	Units
50	milliampere hour

BATT4_FS_LOW_ACT: Low battery failsafe action

What action the vehicle should perform if it hits a low battery failsafe

Values
Value Meaning 0 None

BATT4_FS_CRT_ACT: Critical battery failsafe action

What action the vehicle should perform if it hits a critical battery failsafe

Values
Value Meaning 0 None

BATT4_ARM_VOLT: Required arming voltage

Note: This parameter is for advanced users

Battery voltage level which is required to arm the aircraft. Set to 0 to allow arming at any voltage.

Increment	Units
0.1	volt

BATT4_ARM_MAH: Required arming remaining capacity

Note: This parameter is for advanced users

Battery capacity remaining which is required to arm the aircraft. Set to 0 to allow arming at any capacity. Note that execept for smart batteries rebooting the vehicle will always reset the remaining capacity estimate, which can lead to this check not providing sufficent protection, it is recommended to always use this in conjunction with the BATT4__ARM_VOLT parameter.

Increment	Units
50	milliampere hour

BATT4_OPTIONS: Battery monitor options

Note: This parameter is for advanced users

This sets options to change the behaviour of the battery monitor

Bitmask
Bit Meaning 0 Ignore DroneCAN SoC 1 MPPT reports input voltage and current 2 MPPT Powered off when disarmed 3 MPPT Powered on when armed 4 MPPT Powered off at boot 5 MPPT Powered on at boot 6 Send resistance compensated voltage to GCS

BATT4_VOLT_PIN: Battery Voltage sensing pin

Note: Reboot required after change

Sets the analog input pin that should be used for voltage monitoring.

Values
Value Meaning -1 Disabled 2 Pixhawk/Pixracer/Navio2/Pixhawk2_PM1 5 Navigator 13 Pixhawk2_PM2/CubeOrange_PM2 14 CubeOrange 16 Durandal 100 PX4-v1

BATT4_CURR_PIN: Battery Current sensing pin

Note: Reboot required after change

Sets the analog input pin that should be used for current monitoring.

Values
Value Meaning -1 Disabled 3 Pixhawk/Pixracer/Navio2/Pixhawk2_PM1 4 CubeOrange_PM2/Navigator 14 Pixhawk2_PM2 15 CubeOrange 17 Durandal 101 PX4-v1

BATT4_VOLT_MULT: Voltage Multiplier

Note: This parameter is for advanced users

Used to convert the voltage of the voltage sensing pin (BATT4_VOLT_PIN) to the actual battery's voltage (pin_voltage * VOLT_MULT). For the 3DR Power brick with a Pixhawk, this should be set to 10.1. For the Pixhawk with the 3DR 4in1 ESC this should be 12.02. For the PX using the PX4IO power supply this should be set to 1.

BATT4_AMP_PERVLT: Amps per volt

Number of amps that a 1V reading on the current sensor corresponds to. With a Pixhawk using the 3DR Power brick this should be set to 17. For the Pixhawk with the 3DR 4in1 ESC this should be 17.

Units
ampere per volt

BATT4_AMP_OFFSET: AMP offset

Voltage offset at zero current on current sensor

Units
volt

BATT4_VLT_OFFSET: Volage offset

Note: This parameter is for advanced users

Voltage offset on voltage pin. This allows for an offset due to a diode. This voltage is subtracted before the scaling is applied

Units
volt

BATT4_I2C_BUS: Battery monitor I2C bus number

Note: This parameter is for advanced users

Note: Reboot required after change

Battery monitor I2C bus number

Range
0 to 3

BATT4_I2C_ADDR: Battery monitor I2C address

Note: This parameter is for advanced users

Note: Reboot required after change

Battery monitor I2C address

Range
0 to 127

BATT4_SUM_MASK: Battery Sum mask

0: sum of remaining battery monitors, If none 0 sum of specified monitors. Current will be summed and voltages averaged.

Bitmask
Bit Meaning 0 monitor 1 1 monitor 2 2 monitor 3 3 monitor 4 4 monitor 5 5 monitor 6 6 monitor 7 7 monitor 8 8 monitor 9

BATT4_CURR_MULT: Scales reported power monitor current

Note: This parameter is for advanced users

Multiplier applied to all current related reports to allow for adjustment if no UAVCAN param access or current splitting applications

Range
.1 to 10

BATT4_FL_VLT_MIN: Empty fuel level voltage

Note: This parameter is for advanced users

The voltage seen on the analog pin when the fuel tank is empty. Note: For this type of battery monitor, the voltage seen by the analog pin is displayed as battery voltage on a GCS.

Range	Units
0.01 to 10	volt

BATT4_FL_V_MULT: Fuel level voltage multiplier

Note: This parameter is for advanced users

Voltage multiplier to determine what the full tank voltage reading is. This is calculated as 1 / (Voltage_Full - Voltage_Empty) Note: For this type of battery monitor, the voltage seen by the analog pin is displayed as battery voltage on a GCS.

Range
0.01 to 10

BATT4_FL_FLTR: Fuel level filter frequency

Note: This parameter is for advanced users

Note: Reboot required after change

Filter frequency in Hertz where a low pass filter is used. This is used to filter out tank slosh from the fuel level reading. A value of -1 disables the filter and unfiltered voltage is used to determine the fuel level. The suggested values at in the range of 0.2 Hz to 0.5 Hz.

Range	Units
-1 to 1	hertz

BATT4_FL_PIN: Fuel level analog pin number

Analog input pin that fuel level sensor is connected to. Airspeed ports can be used for Analog input. When using analog pin 103, the maximum value of the input in 3.3V.

Values
Value Meaning -1 Not Used 11 Pixracer 13 Pixhawk ADC4 14 Pixhawk ADC3 15 Pixhawk ADC6/Pixhawk2 ADC 103 Pixhawk SBUS

BATT5_ Parameters

BATT5_MONITOR: Battery monitoring

Note: Reboot required after change

Controls enabling monitoring of the battery's voltage and current

Values
Value Meaning 0 Disabled 3 Analog Voltage Only 4 Analog Voltage and Current 5 Solo 6 Bebop 7 SMBus-Generic 8 DroneCAN-BatteryInfo 9 ESC 10 Sum Of Selected Monitors 11 FuelFlow 12 FuelLevelPWM 13 SMBUS-SUI3 14 SMBUS-SUI6 15 NeoDesign 16 SMBus-Maxell 17 Generator-Elec 18 Generator-Fuel 19 Rotoye 20 MPPT 21 INA2XX 22 LTC2946 23 Torqeedo 24 FuelLevelAnalog

BATT5_CAPACITY: Battery capacity

Capacity of the battery in mAh when full

Increment	Units
50	milliampere hour

BATT5_SERIAL_NUM: Battery serial number

Note: This parameter is for advanced users

Battery serial number, automatically filled in for SMBus batteries, otherwise will be -1. With DroneCan it is the battery_id.

BATT5_LOW_TIMER: Low voltage timeout

Note: This parameter is for advanced users

This is the timeout in seconds before a low voltage event will be triggered. For aircraft with low C batteries it may be necessary to raise this in order to cope with low voltage on long takeoffs. A value of zero disables low voltage errors.

Increment	Range	Units
1	0 to 120	seconds

BATT5_FS_VOLTSRC: Failsafe voltage source

Note: This parameter is for advanced users

Voltage type used for detection of low voltage event

Values
Value Meaning 0 Raw Voltage 1 Sag Compensated Voltage

BATT5_LOW_VOLT: Low battery voltage

Battery voltage that triggers a low battery failsafe. Set to 0 to disable. If the battery voltage drops below this voltage continuously for more then the period specified by the BATT5_LOW_TIMER parameter then the vehicle will perform the failsafe specified by the BATT5_FS_LOW_ACT parameter.

Increment	Units
0.1	volt

BATT5_LOW_MAH: Low battery capacity

Battery capacity at which the low battery failsafe is triggered. Set to 0 to disable battery remaining failsafe. If the battery capacity drops below this level the vehicle will perform the failsafe specified by the BATT5_FS_LOW_ACT parameter.

Increment	Units
50	milliampere hour

BATT5_CRT_VOLT: Critical battery voltage

Battery voltage that triggers a critical battery failsafe. Set to 0 to disable. If the battery voltage drops below this voltage continuously for more then the period specified by the BATT5_LOW_TIMER parameter then the vehicle will perform the failsafe specified by the BATT5_FS_CRT_ACT parameter.

Increment	Units
0.1	volt

BATT5_CRT_MAH: Battery critical capacity

Battery capacity at which the critical battery failsafe is triggered. Set to 0 to disable battery remaining failsafe. If the battery capacity drops below this level the vehicle will perform the failsafe specified by the BATT5__FS_CRT_ACT parameter.

Increment	Units
50	milliampere hour

BATT5_FS_LOW_ACT: Low battery failsafe action

What action the vehicle should perform if it hits a low battery failsafe

Values
Value Meaning 0 None

BATT5_FS_CRT_ACT: Critical battery failsafe action

What action the vehicle should perform if it hits a critical battery failsafe

Values
Value Meaning 0 None

BATT5_ARM_VOLT: Required arming voltage

Note: This parameter is for advanced users

Battery voltage level which is required to arm the aircraft. Set to 0 to allow arming at any voltage.

Increment	Units
0.1	volt

BATT5_ARM_MAH: Required arming remaining capacity

Note: This parameter is for advanced users

Battery capacity remaining which is required to arm the aircraft. Set to 0 to allow arming at any capacity. Note that execept for smart batteries rebooting the vehicle will always reset the remaining capacity estimate, which can lead to this check not providing sufficent protection, it is recommended to always use this in conjunction with the BATT5__ARM_VOLT parameter.

Increment	Units
50	milliampere hour

BATT5_OPTIONS: Battery monitor options

Note: This parameter is for advanced users

This sets options to change the behaviour of the battery monitor

Bitmask
Bit Meaning 0 Ignore DroneCAN SoC 1 MPPT reports input voltage and current 2 MPPT Powered off when disarmed 3 MPPT Powered on when armed 4 MPPT Powered off at boot 5 MPPT Powered on at boot 6 Send resistance compensated voltage to GCS

BATT5_VOLT_PIN: Battery Voltage sensing pin

Note: Reboot required after change

Sets the analog input pin that should be used for voltage monitoring.

Values
Value Meaning -1 Disabled 2 Pixhawk/Pixracer/Navio2/Pixhawk2_PM1 5 Navigator 13 Pixhawk2_PM2/CubeOrange_PM2 14 CubeOrange 16 Durandal 100 PX4-v1

BATT5_CURR_PIN: Battery Current sensing pin

Note: Reboot required after change

Sets the analog input pin that should be used for current monitoring.

Values
Value Meaning -1 Disabled 3 Pixhawk/Pixracer/Navio2/Pixhawk2_PM1 4 CubeOrange_PM2/Navigator 14 Pixhawk2_PM2 15 CubeOrange 17 Durandal 101 PX4-v1

BATT5_VOLT_MULT: Voltage Multiplier

Note: This parameter is for advanced users

Used to convert the voltage of the voltage sensing pin (BATT5_VOLT_PIN) to the actual battery's voltage (pin_voltage * VOLT_MULT). For the 3DR Power brick with a Pixhawk, this should be set to 10.1. For the Pixhawk with the 3DR 4in1 ESC this should be 12.02. For the PX using the PX4IO power supply this should be set to 1.

BATT5_AMP_PERVLT: Amps per volt

Number of amps that a 1V reading on the current sensor corresponds to. With a Pixhawk using the 3DR Power brick this should be set to 17. For the Pixhawk with the 3DR 4in1 ESC this should be 17.

Units
ampere per volt

BATT5_AMP_OFFSET: AMP offset

Voltage offset at zero current on current sensor

Units
volt

BATT5_VLT_OFFSET: Volage offset

Note: This parameter is for advanced users

Voltage offset on voltage pin. This allows for an offset due to a diode. This voltage is subtracted before the scaling is applied

Units
volt

BATT5_I2C_BUS: Battery monitor I2C bus number

Note: This parameter is for advanced users

Note: Reboot required after change

Battery monitor I2C bus number

Range
0 to 3

BATT5_I2C_ADDR: Battery monitor I2C address

Note: This parameter is for advanced users

Note: Reboot required after change

Battery monitor I2C address

Range
0 to 127

BATT5_SUM_MASK: Battery Sum mask

0: sum of remaining battery monitors, If none 0 sum of specified monitors. Current will be summed and voltages averaged.

Bitmask
Bit Meaning 0 monitor 1 1 monitor 2 2 monitor 3 3 monitor 4 4 monitor 5 5 monitor 6 6 monitor 7 7 monitor 8 8 monitor 9

BATT5_CURR_MULT: Scales reported power monitor current

Note: This parameter is for advanced users

Multiplier applied to all current related reports to allow for adjustment if no UAVCAN param access or current splitting applications

Range
.1 to 10

BATT5_FL_VLT_MIN: Empty fuel level voltage

Note: This parameter is for advanced users

The voltage seen on the analog pin when the fuel tank is empty. Note: For this type of battery monitor, the voltage seen by the analog pin is displayed as battery voltage on a GCS.

Range	Units
0.01 to 10	volt

BATT5_FL_V_MULT: Fuel level voltage multiplier

Note: This parameter is for advanced users

Voltage multiplier to determine what the full tank voltage reading is. This is calculated as 1 / (Voltage_Full - Voltage_Empty) Note: For this type of battery monitor, the voltage seen by the analog pin is displayed as battery voltage on a GCS.

Range
0.01 to 10

BATT5_FL_FLTR: Fuel level filter frequency

Note: This parameter is for advanced users

Note: Reboot required after change

Filter frequency in Hertz where a low pass filter is used. This is used to filter out tank slosh from the fuel level reading. A value of -1 disables the filter and unfiltered voltage is used to determine the fuel level. The suggested values at in the range of 0.2 Hz to 0.5 Hz.

Range	Units
-1 to 1	hertz

BATT5_FL_PIN: Fuel level analog pin number

Analog input pin that fuel level sensor is connected to. Airspeed ports can be used for Analog input. When using analog pin 103, the maximum value of the input in 3.3V.

Values
Value Meaning -1 Not Used 11 Pixracer 13 Pixhawk ADC4 14 Pixhawk ADC3 15 Pixhawk ADC6/Pixhawk2 ADC 103 Pixhawk SBUS

BATT6_ Parameters

BATT6_MONITOR: Battery monitoring

Note: Reboot required after change

Controls enabling monitoring of the battery's voltage and current

Values
Value Meaning 0 Disabled 3 Analog Voltage Only 4 Analog Voltage and Current 5 Solo 6 Bebop 7 SMBus-Generic 8 DroneCAN-BatteryInfo 9 ESC 10 Sum Of Selected Monitors 11 FuelFlow 12 FuelLevelPWM 13 SMBUS-SUI3 14 SMBUS-SUI6 15 NeoDesign 16 SMBus-Maxell 17 Generator-Elec 18 Generator-Fuel 19 Rotoye 20 MPPT 21 INA2XX 22 LTC2946 23 Torqeedo 24 FuelLevelAnalog

BATT6_CAPACITY: Battery capacity

Capacity of the battery in mAh when full

Increment	Units
50	milliampere hour

BATT6_SERIAL_NUM: Battery serial number

Note: This parameter is for advanced users

Battery serial number, automatically filled in for SMBus batteries, otherwise will be -1. With DroneCan it is the battery_id.

BATT6_LOW_TIMER: Low voltage timeout

Note: This parameter is for advanced users

This is the timeout in seconds before a low voltage event will be triggered. For aircraft with low C batteries it may be necessary to raise this in order to cope with low voltage on long takeoffs. A value of zero disables low voltage errors.

Increment	Range	Units
1	0 to 120	seconds

BATT6_FS_VOLTSRC: Failsafe voltage source

Note: This parameter is for advanced users

Voltage type used for detection of low voltage event

Values
Value Meaning 0 Raw Voltage 1 Sag Compensated Voltage

BATT6_LOW_VOLT: Low battery voltage

Battery voltage that triggers a low battery failsafe. Set to 0 to disable. If the battery voltage drops below this voltage continuously for more then the period specified by the BATT6_LOW_TIMER parameter then the vehicle will perform the failsafe specified by the BATT6_FS_LOW_ACT parameter.

Increment	Units
0.1	volt

BATT6_LOW_MAH: Low battery capacity

Battery capacity at which the low battery failsafe is triggered. Set to 0 to disable battery remaining failsafe. If the battery capacity drops below this level the vehicle will perform the failsafe specified by the BATT6_FS_LOW_ACT parameter.

Increment	Units
50	milliampere hour

BATT6_CRT_VOLT: Critical battery voltage

Battery voltage that triggers a critical battery failsafe. Set to 0 to disable. If the battery voltage drops below this voltage continuously for more then the period specified by the BATT6_LOW_TIMER parameter then the vehicle will perform the failsafe specified by the BATT6_FS_CRT_ACT parameter.

Increment	Units
0.1	volt

BATT6_CRT_MAH: Battery critical capacity

Battery capacity at which the critical battery failsafe is triggered. Set to 0 to disable battery remaining failsafe. If the battery capacity drops below this level the vehicle will perform the failsafe specified by the BATT6__FS_CRT_ACT parameter.

Increment	Units
50	milliampere hour

BATT6_FS_LOW_ACT: Low battery failsafe action

What action the vehicle should perform if it hits a low battery failsafe

Values
Value Meaning 0 None

BATT6_FS_CRT_ACT: Critical battery failsafe action

What action the vehicle should perform if it hits a critical battery failsafe

Values
Value Meaning 0 None

BATT6_ARM_VOLT: Required arming voltage

Note: This parameter is for advanced users

Battery voltage level which is required to arm the aircraft. Set to 0 to allow arming at any voltage.

Increment	Units
0.1	volt

BATT6_ARM_MAH: Required arming remaining capacity

Note: This parameter is for advanced users

Battery capacity remaining which is required to arm the aircraft. Set to 0 to allow arming at any capacity. Note that execept for smart batteries rebooting the vehicle will always reset the remaining capacity estimate, which can lead to this check not providing sufficent protection, it is recommended to always use this in conjunction with the BATT6__ARM_VOLT parameter.

Increment	Units
50	milliampere hour

BATT6_OPTIONS: Battery monitor options

Note: This parameter is for advanced users

This sets options to change the behaviour of the battery monitor

Bitmask
Bit Meaning 0 Ignore DroneCAN SoC 1 MPPT reports input voltage and current 2 MPPT Powered off when disarmed 3 MPPT Powered on when armed 4 MPPT Powered off at boot 5 MPPT Powered on at boot 6 Send resistance compensated voltage to GCS

BATT6_VOLT_PIN: Battery Voltage sensing pin

Note: Reboot required after change

Sets the analog input pin that should be used for voltage monitoring.

Values
Value Meaning -1 Disabled 2 Pixhawk/Pixracer/Navio2/Pixhawk2_PM1 5 Navigator 13 Pixhawk2_PM2/CubeOrange_PM2 14 CubeOrange 16 Durandal 100 PX4-v1

BATT6_CURR_PIN: Battery Current sensing pin

Note: Reboot required after change

Sets the analog input pin that should be used for current monitoring.

Values
Value Meaning -1 Disabled 3 Pixhawk/Pixracer/Navio2/Pixhawk2_PM1 4 CubeOrange_PM2/Navigator 14 Pixhawk2_PM2 15 CubeOrange 17 Durandal 101 PX4-v1

BATT6_VOLT_MULT: Voltage Multiplier

Note: This parameter is for advanced users

Used to convert the voltage of the voltage sensing pin (BATT6_VOLT_PIN) to the actual battery's voltage (pin_voltage * VOLT_MULT). For the 3DR Power brick with a Pixhawk, this should be set to 10.1. For the Pixhawk with the 3DR 4in1 ESC this should be 12.02. For the PX using the PX4IO power supply this should be set to 1.

BATT6_AMP_PERVLT: Amps per volt

Number of amps that a 1V reading on the current sensor corresponds to. With a Pixhawk using the 3DR Power brick this should be set to 17. For the Pixhawk with the 3DR 4in1 ESC this should be 17.

Units
ampere per volt

BATT6_AMP_OFFSET: AMP offset

Voltage offset at zero current on current sensor

Units
volt

BATT6_VLT_OFFSET: Volage offset

Note: This parameter is for advanced users

Voltage offset on voltage pin. This allows for an offset due to a diode. This voltage is subtracted before the scaling is applied

Units
volt

BATT6_I2C_BUS: Battery monitor I2C bus number

Note: This parameter is for advanced users

Note: Reboot required after change

Battery monitor I2C bus number

Range
0 to 3

BATT6_I2C_ADDR: Battery monitor I2C address

Note: This parameter is for advanced users

Note: Reboot required after change

Battery monitor I2C address

Range
0 to 127

BATT6_SUM_MASK: Battery Sum mask

0: sum of remaining battery monitors, If none 0 sum of specified monitors. Current will be summed and voltages averaged.

Bitmask
Bit Meaning 0 monitor 1 1 monitor 2 2 monitor 3 3 monitor 4 4 monitor 5 5 monitor 6 6 monitor 7 7 monitor 8 8 monitor 9

BATT6_CURR_MULT: Scales reported power monitor current

Note: This parameter is for advanced users

Multiplier applied to all current related reports to allow for adjustment if no UAVCAN param access or current splitting applications

Range
.1 to 10

BATT6_FL_VLT_MIN: Empty fuel level voltage

Note: This parameter is for advanced users

The voltage seen on the analog pin when the fuel tank is empty. Note: For this type of battery monitor, the voltage seen by the analog pin is displayed as battery voltage on a GCS.

Range	Units
0.01 to 10	volt

BATT6_FL_V_MULT: Fuel level voltage multiplier

Note: This parameter is for advanced users

Voltage multiplier to determine what the full tank voltage reading is. This is calculated as 1 / (Voltage_Full - Voltage_Empty) Note: For this type of battery monitor, the voltage seen by the analog pin is displayed as battery voltage on a GCS.

Range
0.01 to 10

BATT6_FL_FLTR: Fuel level filter frequency

Note: This parameter is for advanced users

Note: Reboot required after change

Filter frequency in Hertz where a low pass filter is used. This is used to filter out tank slosh from the fuel level reading. A value of -1 disables the filter and unfiltered voltage is used to determine the fuel level. The suggested values at in the range of 0.2 Hz to 0.5 Hz.

Range	Units
-1 to 1	hertz

BATT6_FL_PIN: Fuel level analog pin number

Analog input pin that fuel level sensor is connected to. Airspeed ports can be used for Analog input. When using analog pin 103, the maximum value of the input in 3.3V.

Values
Value Meaning -1 Not Used 11 Pixracer 13 Pixhawk ADC4 14 Pixhawk ADC3 15 Pixhawk ADC6/Pixhawk2 ADC 103 Pixhawk SBUS

BATT7_ Parameters

BATT7_MONITOR: Battery monitoring

Note: Reboot required after change

Controls enabling monitoring of the battery's voltage and current

Values
Value Meaning 0 Disabled 3 Analog Voltage Only 4 Analog Voltage and Current 5 Solo 6 Bebop 7 SMBus-Generic 8 DroneCAN-BatteryInfo 9 ESC 10 Sum Of Selected Monitors 11 FuelFlow 12 FuelLevelPWM 13 SMBUS-SUI3 14 SMBUS-SUI6 15 NeoDesign 16 SMBus-Maxell 17 Generator-Elec 18 Generator-Fuel 19 Rotoye 20 MPPT 21 INA2XX 22 LTC2946 23 Torqeedo 24 FuelLevelAnalog

BATT7_CAPACITY: Battery capacity

Capacity of the battery in mAh when full

Increment	Units
50	milliampere hour

BATT7_SERIAL_NUM: Battery serial number

Note: This parameter is for advanced users

Battery serial number, automatically filled in for SMBus batteries, otherwise will be -1. With DroneCan it is the battery_id.

BATT7_LOW_TIMER: Low voltage timeout

Note: This parameter is for advanced users

This is the timeout in seconds before a low voltage event will be triggered. For aircraft with low C batteries it may be necessary to raise this in order to cope with low voltage on long takeoffs. A value of zero disables low voltage errors.

Increment	Range	Units
1	0 to 120	seconds

BATT7_FS_VOLTSRC: Failsafe voltage source

Note: This parameter is for advanced users

Voltage type used for detection of low voltage event

Values
Value Meaning 0 Raw Voltage 1 Sag Compensated Voltage

BATT7_LOW_VOLT: Low battery voltage

Battery voltage that triggers a low battery failsafe. Set to 0 to disable. If the battery voltage drops below this voltage continuously for more then the period specified by the BATT7_LOW_TIMER parameter then the vehicle will perform the failsafe specified by the BATT7_FS_LOW_ACT parameter.

Increment	Units
0.1	volt

BATT7_LOW_MAH: Low battery capacity

Battery capacity at which the low battery failsafe is triggered. Set to 0 to disable battery remaining failsafe. If the battery capacity drops below this level the vehicle will perform the failsafe specified by the BATT7_FS_LOW_ACT parameter.

Increment	Units
50	milliampere hour

BATT7_CRT_VOLT: Critical battery voltage

Battery voltage that triggers a critical battery failsafe. Set to 0 to disable. If the battery voltage drops below this voltage continuously for more then the period specified by the BATT7_LOW_TIMER parameter then the vehicle will perform the failsafe specified by the BATT7_FS_CRT_ACT parameter.

Increment	Units
0.1	volt

BATT7_CRT_MAH: Battery critical capacity

Battery capacity at which the critical battery failsafe is triggered. Set to 0 to disable battery remaining failsafe. If the battery capacity drops below this level the vehicle will perform the failsafe specified by the BATT7__FS_CRT_ACT parameter.

Increment	Units
50	milliampere hour

BATT7_FS_LOW_ACT: Low battery failsafe action

What action the vehicle should perform if it hits a low battery failsafe

Values
Value Meaning 0 None

BATT7_FS_CRT_ACT: Critical battery failsafe action

What action the vehicle should perform if it hits a critical battery failsafe

Values
Value Meaning 0 None

BATT7_ARM_VOLT: Required arming voltage

Note: This parameter is for advanced users

Battery voltage level which is required to arm the aircraft. Set to 0 to allow arming at any voltage.

Increment	Units
0.1	volt

BATT7_ARM_MAH: Required arming remaining capacity

Note: This parameter is for advanced users

Battery capacity remaining which is required to arm the aircraft. Set to 0 to allow arming at any capacity. Note that execept for smart batteries rebooting the vehicle will always reset the remaining capacity estimate, which can lead to this check not providing sufficent protection, it is recommended to always use this in conjunction with the BATT7__ARM_VOLT parameter.

Increment	Units
50	milliampere hour

BATT7_OPTIONS: Battery monitor options

Note: This parameter is for advanced users

This sets options to change the behaviour of the battery monitor

Bitmask
Bit Meaning 0 Ignore DroneCAN SoC 1 MPPT reports input voltage and current 2 MPPT Powered off when disarmed 3 MPPT Powered on when armed 4 MPPT Powered off at boot 5 MPPT Powered on at boot 6 Send resistance compensated voltage to GCS

BATT7_VOLT_PIN: Battery Voltage sensing pin

Note: Reboot required after change

Sets the analog input pin that should be used for voltage monitoring.

Values
Value Meaning -1 Disabled 2 Pixhawk/Pixracer/Navio2/Pixhawk2_PM1 5 Navigator 13 Pixhawk2_PM2/CubeOrange_PM2 14 CubeOrange 16 Durandal 100 PX4-v1

BATT7_CURR_PIN: Battery Current sensing pin

Note: Reboot required after change

Sets the analog input pin that should be used for current monitoring.

Values
Value Meaning -1 Disabled 3 Pixhawk/Pixracer/Navio2/Pixhawk2_PM1 4 CubeOrange_PM2/Navigator 14 Pixhawk2_PM2 15 CubeOrange 17 Durandal 101 PX4-v1

BATT7_VOLT_MULT: Voltage Multiplier

Note: This parameter is for advanced users

Used to convert the voltage of the voltage sensing pin (BATT7_VOLT_PIN) to the actual battery's voltage (pin_voltage * VOLT_MULT). For the 3DR Power brick with a Pixhawk, this should be set to 10.1. For the Pixhawk with the 3DR 4in1 ESC this should be 12.02. For the PX using the PX4IO power supply this should be set to 1.

BATT7_AMP_PERVLT: Amps per volt

Number of amps that a 1V reading on the current sensor corresponds to. With a Pixhawk using the 3DR Power brick this should be set to 17. For the Pixhawk with the 3DR 4in1 ESC this should be 17.

Units
ampere per volt

BATT7_AMP_OFFSET: AMP offset

Voltage offset at zero current on current sensor

Units
volt

BATT7_VLT_OFFSET: Volage offset

Note: This parameter is for advanced users

Voltage offset on voltage pin. This allows for an offset due to a diode. This voltage is subtracted before the scaling is applied

Units
volt

BATT7_I2C_BUS: Battery monitor I2C bus number

Note: This parameter is for advanced users

Note: Reboot required after change

Battery monitor I2C bus number

Range
0 to 3

BATT7_I2C_ADDR: Battery monitor I2C address

Note: This parameter is for advanced users

Note: Reboot required after change

Battery monitor I2C address

Range
0 to 127

BATT7_SUM_MASK: Battery Sum mask

0: sum of remaining battery monitors, If none 0 sum of specified monitors. Current will be summed and voltages averaged.

Bitmask
Bit Meaning 0 monitor 1 1 monitor 2 2 monitor 3 3 monitor 4 4 monitor 5 5 monitor 6 6 monitor 7 7 monitor 8 8 monitor 9

BATT7_CURR_MULT: Scales reported power monitor current

Note: This parameter is for advanced users

Multiplier applied to all current related reports to allow for adjustment if no UAVCAN param access or current splitting applications

Range
.1 to 10

BATT7_FL_VLT_MIN: Empty fuel level voltage

Note: This parameter is for advanced users

The voltage seen on the analog pin when the fuel tank is empty. Note: For this type of battery monitor, the voltage seen by the analog pin is displayed as battery voltage on a GCS.

Range	Units
0.01 to 10	volt

BATT7_FL_V_MULT: Fuel level voltage multiplier

Note: This parameter is for advanced users

Voltage multiplier to determine what the full tank voltage reading is. This is calculated as 1 / (Voltage_Full - Voltage_Empty) Note: For this type of battery monitor, the voltage seen by the analog pin is displayed as battery voltage on a GCS.

Range
0.01 to 10

BATT7_FL_FLTR: Fuel level filter frequency

Note: This parameter is for advanced users

Note: Reboot required after change

Filter frequency in Hertz where a low pass filter is used. This is used to filter out tank slosh from the fuel level reading. A value of -1 disables the filter and unfiltered voltage is used to determine the fuel level. The suggested values at in the range of 0.2 Hz to 0.5 Hz.

Range	Units
-1 to 1	hertz

BATT7_FL_PIN: Fuel level analog pin number

Analog input pin that fuel level sensor is connected to. Airspeed ports can be used for Analog input. When using analog pin 103, the maximum value of the input in 3.3V.

Values
Value Meaning -1 Not Used 11 Pixracer 13 Pixhawk ADC4 14 Pixhawk ADC3 15 Pixhawk ADC6/Pixhawk2 ADC 103 Pixhawk SBUS

BATT8_ Parameters

BATT8_MONITOR: Battery monitoring

Note: Reboot required after change

Controls enabling monitoring of the battery's voltage and current

Values
Value Meaning 0 Disabled 3 Analog Voltage Only 4 Analog Voltage and Current 5 Solo 6 Bebop 7 SMBus-Generic 8 DroneCAN-BatteryInfo 9 ESC 10 Sum Of Selected Monitors 11 FuelFlow 12 FuelLevelPWM 13 SMBUS-SUI3 14 SMBUS-SUI6 15 NeoDesign 16 SMBus-Maxell 17 Generator-Elec 18 Generator-Fuel 19 Rotoye 20 MPPT 21 INA2XX 22 LTC2946 23 Torqeedo 24 FuelLevelAnalog

BATT8_CAPACITY: Battery capacity

Capacity of the battery in mAh when full

Increment	Units
50	milliampere hour

BATT8_SERIAL_NUM: Battery serial number

Note: This parameter is for advanced users

Battery serial number, automatically filled in for SMBus batteries, otherwise will be -1. With DroneCan it is the battery_id.

BATT8_LOW_TIMER: Low voltage timeout

Note: This parameter is for advanced users

This is the timeout in seconds before a low voltage event will be triggered. For aircraft with low C batteries it may be necessary to raise this in order to cope with low voltage on long takeoffs. A value of zero disables low voltage errors.

Increment	Range	Units
1	0 to 120	seconds

BATT8_FS_VOLTSRC: Failsafe voltage source

Note: This parameter is for advanced users

Voltage type used for detection of low voltage event

Values
Value Meaning 0 Raw Voltage 1 Sag Compensated Voltage

BATT8_LOW_VOLT: Low battery voltage

Battery voltage that triggers a low battery failsafe. Set to 0 to disable. If the battery voltage drops below this voltage continuously for more then the period specified by the BATT8_LOW_TIMER parameter then the vehicle will perform the failsafe specified by the BATT8_FS_LOW_ACT parameter.

Increment	Units
0.1	volt

BATT8_LOW_MAH: Low battery capacity

Battery capacity at which the low battery failsafe is triggered. Set to 0 to disable battery remaining failsafe. If the battery capacity drops below this level the vehicle will perform the failsafe specified by the BATT8_FS_LOW_ACT parameter.

Increment	Units
50	milliampere hour

BATT8_CRT_VOLT: Critical battery voltage

Battery voltage that triggers a critical battery failsafe. Set to 0 to disable. If the battery voltage drops below this voltage continuously for more then the period specified by the BATT8_LOW_TIMER parameter then the vehicle will perform the failsafe specified by the BATT8_FS_CRT_ACT parameter.

Increment	Units
0.1	volt

BATT8_CRT_MAH: Battery critical capacity

Battery capacity at which the critical battery failsafe is triggered. Set to 0 to disable battery remaining failsafe. If the battery capacity drops below this level the vehicle will perform the failsafe specified by the BATT8__FS_CRT_ACT parameter.

Increment	Units
50	milliampere hour

BATT8_FS_LOW_ACT: Low battery failsafe action

What action the vehicle should perform if it hits a low battery failsafe

Values
Value Meaning 0 None

BATT8_FS_CRT_ACT: Critical battery failsafe action

What action the vehicle should perform if it hits a critical battery failsafe

Values
Value Meaning 0 None

BATT8_ARM_VOLT: Required arming voltage

Note: This parameter is for advanced users

Battery voltage level which is required to arm the aircraft. Set to 0 to allow arming at any voltage.

Increment	Units
0.1	volt

BATT8_ARM_MAH: Required arming remaining capacity

Note: This parameter is for advanced users

Battery capacity remaining which is required to arm the aircraft. Set to 0 to allow arming at any capacity. Note that execept for smart batteries rebooting the vehicle will always reset the remaining capacity estimate, which can lead to this check not providing sufficent protection, it is recommended to always use this in conjunction with the BATT8__ARM_VOLT parameter.

Increment	Units
50	milliampere hour

BATT8_OPTIONS: Battery monitor options

Note: This parameter is for advanced users

This sets options to change the behaviour of the battery monitor

Bitmask
Bit Meaning 0 Ignore DroneCAN SoC 1 MPPT reports input voltage and current 2 MPPT Powered off when disarmed 3 MPPT Powered on when armed 4 MPPT Powered off at boot 5 MPPT Powered on at boot 6 Send resistance compensated voltage to GCS

BATT8_VOLT_PIN: Battery Voltage sensing pin

Note: Reboot required after change

Sets the analog input pin that should be used for voltage monitoring.

Values
Value Meaning -1 Disabled 2 Pixhawk/Pixracer/Navio2/Pixhawk2_PM1 5 Navigator 13 Pixhawk2_PM2/CubeOrange_PM2 14 CubeOrange 16 Durandal 100 PX4-v1

BATT8_CURR_PIN: Battery Current sensing pin

Note: Reboot required after change

Sets the analog input pin that should be used for current monitoring.

Values
Value Meaning -1 Disabled 3 Pixhawk/Pixracer/Navio2/Pixhawk2_PM1 4 CubeOrange_PM2/Navigator 14 Pixhawk2_PM2 15 CubeOrange 17 Durandal 101 PX4-v1

BATT8_VOLT_MULT: Voltage Multiplier

Note: This parameter is for advanced users

Used to convert the voltage of the voltage sensing pin (BATT8_VOLT_PIN) to the actual battery's voltage (pin_voltage * VOLT_MULT). For the 3DR Power brick with a Pixhawk, this should be set to 10.1. For the Pixhawk with the 3DR 4in1 ESC this should be 12.02. For the PX using the PX4IO power supply this should be set to 1.

BATT8_AMP_PERVLT: Amps per volt

Number of amps that a 1V reading on the current sensor corresponds to. With a Pixhawk using the 3DR Power brick this should be set to 17. For the Pixhawk with the 3DR 4in1 ESC this should be 17.

Units
ampere per volt

BATT8_AMP_OFFSET: AMP offset

Voltage offset at zero current on current sensor

Units
volt

BATT8_VLT_OFFSET: Volage offset

Note: This parameter is for advanced users

Voltage offset on voltage pin. This allows for an offset due to a diode. This voltage is subtracted before the scaling is applied

Units
volt

BATT8_I2C_BUS: Battery monitor I2C bus number

Note: This parameter is for advanced users

Note: Reboot required after change

Battery monitor I2C bus number

Range
0 to 3

BATT8_I2C_ADDR: Battery monitor I2C address

Note: This parameter is for advanced users

Note: Reboot required after change

Battery monitor I2C address

Range
0 to 127

BATT8_SUM_MASK: Battery Sum mask

0: sum of remaining battery monitors, If none 0 sum of specified monitors. Current will be summed and voltages averaged.

Bitmask
Bit Meaning 0 monitor 1 1 monitor 2 2 monitor 3 3 monitor 4 4 monitor 5 5 monitor 6 6 monitor 7 7 monitor 8 8 monitor 9

BATT8_CURR_MULT: Scales reported power monitor current

Note: This parameter is for advanced users

Multiplier applied to all current related reports to allow for adjustment if no UAVCAN param access or current splitting applications

Range
.1 to 10

BATT8_FL_VLT_MIN: Empty fuel level voltage

Note: This parameter is for advanced users

The voltage seen on the analog pin when the fuel tank is empty. Note: For this type of battery monitor, the voltage seen by the analog pin is displayed as battery voltage on a GCS.

Range	Units
0.01 to 10	volt

BATT8_FL_V_MULT: Fuel level voltage multiplier

Note: This parameter is for advanced users

Voltage multiplier to determine what the full tank voltage reading is. This is calculated as 1 / (Voltage_Full - Voltage_Empty) Note: For this type of battery monitor, the voltage seen by the analog pin is displayed as battery voltage on a GCS.

Range
0.01 to 10

BATT8_FL_FLTR: Fuel level filter frequency

Note: This parameter is for advanced users

Note: Reboot required after change

Filter frequency in Hertz where a low pass filter is used. This is used to filter out tank slosh from the fuel level reading. A value of -1 disables the filter and unfiltered voltage is used to determine the fuel level. The suggested values at in the range of 0.2 Hz to 0.5 Hz.

Range	Units
-1 to 1	hertz

BATT8_FL_PIN: Fuel level analog pin number

Analog input pin that fuel level sensor is connected to. Airspeed ports can be used for Analog input. When using analog pin 103, the maximum value of the input in 3.3V.

Values
Value Meaning -1 Not Used 11 Pixracer 13 Pixhawk ADC4 14 Pixhawk ADC3 15 Pixhawk ADC6/Pixhawk2 ADC 103 Pixhawk SBUS

BATT9_ Parameters

BATT9_MONITOR: Battery monitoring

Note: Reboot required after change

Controls enabling monitoring of the battery's voltage and current

Values
Value Meaning 0 Disabled 3 Analog Voltage Only 4 Analog Voltage and Current 5 Solo 6 Bebop 7 SMBus-Generic 8 DroneCAN-BatteryInfo 9 ESC 10 Sum Of Selected Monitors 11 FuelFlow 12 FuelLevelPWM 13 SMBUS-SUI3 14 SMBUS-SUI6 15 NeoDesign 16 SMBus-Maxell 17 Generator-Elec 18 Generator-Fuel 19 Rotoye 20 MPPT 21 INA2XX 22 LTC2946 23 Torqeedo 24 FuelLevelAnalog

BATT9_CAPACITY: Battery capacity

Capacity of the battery in mAh when full

Increment	Units
50	milliampere hour

BATT9_SERIAL_NUM: Battery serial number

Note: This parameter is for advanced users

Battery serial number, automatically filled in for SMBus batteries, otherwise will be -1. With DroneCan it is the battery_id.

BATT9_LOW_TIMER: Low voltage timeout

Note: This parameter is for advanced users

This is the timeout in seconds before a low voltage event will be triggered. For aircraft with low C batteries it may be necessary to raise this in order to cope with low voltage on long takeoffs. A value of zero disables low voltage errors.

Increment	Range	Units
1	0 to 120	seconds

BATT9_FS_VOLTSRC: Failsafe voltage source

Note: This parameter is for advanced users

Voltage type used for detection of low voltage event

Values
Value Meaning 0 Raw Voltage 1 Sag Compensated Voltage

BATT9_LOW_VOLT: Low battery voltage

Battery voltage that triggers a low battery failsafe. Set to 0 to disable. If the battery voltage drops below this voltage continuously for more then the period specified by the BATT9_LOW_TIMER parameter then the vehicle will perform the failsafe specified by the BATT9_FS_LOW_ACT parameter.

Increment	Units
0.1	volt

BATT9_LOW_MAH: Low battery capacity

Battery capacity at which the low battery failsafe is triggered. Set to 0 to disable battery remaining failsafe. If the battery capacity drops below this level the vehicle will perform the failsafe specified by the BATT9_FS_LOW_ACT parameter.

Increment	Units
50	milliampere hour

BATT9_CRT_VOLT: Critical battery voltage

Battery voltage that triggers a critical battery failsafe. Set to 0 to disable. If the battery voltage drops below this voltage continuously for more then the period specified by the BATT9_LOW_TIMER parameter then the vehicle will perform the failsafe specified by the BATT9_FS_CRT_ACT parameter.

Increment	Units
0.1	volt

BATT9_CRT_MAH: Battery critical capacity

Battery capacity at which the critical battery failsafe is triggered. Set to 0 to disable battery remaining failsafe. If the battery capacity drops below this level the vehicle will perform the failsafe specified by the BATT9__FS_CRT_ACT parameter.

Increment	Units
50	milliampere hour

BATT9_FS_LOW_ACT: Low battery failsafe action

What action the vehicle should perform if it hits a low battery failsafe

Values
Value Meaning 0 None

BATT9_FS_CRT_ACT: Critical battery failsafe action

What action the vehicle should perform if it hits a critical battery failsafe

Values
Value Meaning 0 None

BATT9_ARM_VOLT: Required arming voltage

Note: This parameter is for advanced users

Battery voltage level which is required to arm the aircraft. Set to 0 to allow arming at any voltage.

Increment	Units
0.1	volt

BATT9_ARM_MAH: Required arming remaining capacity

Note: This parameter is for advanced users

Battery capacity remaining which is required to arm the aircraft. Set to 0 to allow arming at any capacity. Note that execept for smart batteries rebooting the vehicle will always reset the remaining capacity estimate, which can lead to this check not providing sufficent protection, it is recommended to always use this in conjunction with the BATT9__ARM_VOLT parameter.

Increment	Units
50	milliampere hour

BATT9_OPTIONS: Battery monitor options

Note: This parameter is for advanced users

This sets options to change the behaviour of the battery monitor

Bitmask
Bit Meaning 0 Ignore DroneCAN SoC 1 MPPT reports input voltage and current 2 MPPT Powered off when disarmed 3 MPPT Powered on when armed 4 MPPT Powered off at boot 5 MPPT Powered on at boot 6 Send resistance compensated voltage to GCS

BATT9_VOLT_PIN: Battery Voltage sensing pin

Note: Reboot required after change

Sets the analog input pin that should be used for voltage monitoring.

Values
Value Meaning -1 Disabled 2 Pixhawk/Pixracer/Navio2/Pixhawk2_PM1 5 Navigator 13 Pixhawk2_PM2/CubeOrange_PM2 14 CubeOrange 16 Durandal 100 PX4-v1

BATT9_CURR_PIN: Battery Current sensing pin

Note: Reboot required after change

Sets the analog input pin that should be used for current monitoring.

Values
Value Meaning -1 Disabled 3 Pixhawk/Pixracer/Navio2/Pixhawk2_PM1 4 CubeOrange_PM2/Navigator 14 Pixhawk2_PM2 15 CubeOrange 17 Durandal 101 PX4-v1

BATT9_VOLT_MULT: Voltage Multiplier

Note: This parameter is for advanced users

Used to convert the voltage of the voltage sensing pin (BATT9_VOLT_PIN) to the actual battery's voltage (pin_voltage * VOLT_MULT). For the 3DR Power brick with a Pixhawk, this should be set to 10.1. For the Pixhawk with the 3DR 4in1 ESC this should be 12.02. For the PX using the PX4IO power supply this should be set to 1.

BATT9_AMP_PERVLT: Amps per volt

Number of amps that a 1V reading on the current sensor corresponds to. With a Pixhawk using the 3DR Power brick this should be set to 17. For the Pixhawk with the 3DR 4in1 ESC this should be 17.

Units
ampere per volt

BATT9_AMP_OFFSET: AMP offset

Voltage offset at zero current on current sensor

Units
volt

BATT9_VLT_OFFSET: Volage offset

Note: This parameter is for advanced users

Voltage offset on voltage pin. This allows for an offset due to a diode. This voltage is subtracted before the scaling is applied

Units
volt

BATT9_I2C_BUS: Battery monitor I2C bus number

Note: This parameter is for advanced users

Note: Reboot required after change

Battery monitor I2C bus number

Range
0 to 3

BATT9_I2C_ADDR: Battery monitor I2C address

Note: This parameter is for advanced users

Note: Reboot required after change

Battery monitor I2C address

Range
0 to 127

BATT9_SUM_MASK: Battery Sum mask

0: sum of remaining battery monitors, If none 0 sum of specified monitors. Current will be summed and voltages averaged.

Bitmask
Bit Meaning 0 monitor 1 1 monitor 2 2 monitor 3 3 monitor 4 4 monitor 5 5 monitor 6 6 monitor 7 7 monitor 8 8 monitor 9

BATT9_CURR_MULT: Scales reported power monitor current

Note: This parameter is for advanced users

Multiplier applied to all current related reports to allow for adjustment if no UAVCAN param access or current splitting applications

Range
.1 to 10

BATT9_FL_VLT_MIN: Empty fuel level voltage

Note: This parameter is for advanced users

The voltage seen on the analog pin when the fuel tank is empty. Note: For this type of battery monitor, the voltage seen by the analog pin is displayed as battery voltage on a GCS.

Range	Units
0.01 to 10	volt

BATT9_FL_V_MULT: Fuel level voltage multiplier

Note: This parameter is for advanced users

Voltage multiplier to determine what the full tank voltage reading is. This is calculated as 1 / (Voltage_Full - Voltage_Empty) Note: For this type of battery monitor, the voltage seen by the analog pin is displayed as battery voltage on a GCS.

Range
0.01 to 10

BATT9_FL_FLTR: Fuel level filter frequency

Note: This parameter is for advanced users

Note: Reboot required after change

Filter frequency in Hertz where a low pass filter is used. This is used to filter out tank slosh from the fuel level reading. A value of -1 disables the filter and unfiltered voltage is used to determine the fuel level. The suggested values at in the range of 0.2 Hz to 0.5 Hz.

Range	Units
-1 to 1	hertz

BATT9_FL_PIN: Fuel level analog pin number

Analog input pin that fuel level sensor is connected to. Airspeed ports can be used for Analog input. When using analog pin 103, the maximum value of the input in 3.3V.

Values
Value Meaning -1 Not Used 11 Pixracer 13 Pixhawk ADC4 14 Pixhawk ADC3 15 Pixhawk ADC6/Pixhawk2 ADC 103 Pixhawk SBUS

BATT_ Parameters

BATT_MONITOR: Battery monitoring

Note: Reboot required after change

Controls enabling monitoring of the battery's voltage and current

Values
Value Meaning 0 Disabled 3 Analog Voltage Only 4 Analog Voltage and Current 5 Solo 6 Bebop 7 SMBus-Generic 8 DroneCAN-BatteryInfo 9 ESC 10 Sum Of Selected Monitors 11 FuelFlow 12 FuelLevelPWM 13 SMBUS-SUI3 14 SMBUS-SUI6 15 NeoDesign 16 SMBus-Maxell 17 Generator-Elec 18 Generator-Fuel 19 Rotoye 20 MPPT 21 INA2XX 22 LTC2946 23 Torqeedo 24 FuelLevelAnalog

BATT_CAPACITY: Battery capacity

Capacity of the battery in mAh when full

Increment	Units
50	milliampere hour

BATT_SERIAL_NUM: Battery serial number

Note: This parameter is for advanced users

Battery serial number, automatically filled in for SMBus batteries, otherwise will be -1. With DroneCan it is the battery_id.

BATT_LOW_TIMER: Low voltage timeout

Note: This parameter is for advanced users

This is the timeout in seconds before a low voltage event will be triggered. For aircraft with low C batteries it may be necessary to raise this in order to cope with low voltage on long takeoffs. A value of zero disables low voltage errors.

Increment	Range	Units
1	0 to 120	seconds

BATT_FS_VOLTSRC: Failsafe voltage source

Note: This parameter is for advanced users

Voltage type used for detection of low voltage event

Values
Value Meaning 0 Raw Voltage 1 Sag Compensated Voltage

BATT_LOW_VOLT: Low battery voltage

Battery voltage that triggers a low battery failsafe. Set to 0 to disable. If the battery voltage drops below this voltage continuously for more then the period specified by the BATT_LOW_TIMER parameter then the vehicle will perform the failsafe specified by the BATT_FS_LOW_ACT parameter.

Increment	Units
0.1	volt

BATT_LOW_MAH: Low battery capacity

Battery capacity at which the low battery failsafe is triggered. Set to 0 to disable battery remaining failsafe. If the battery capacity drops below this level the vehicle will perform the failsafe specified by the BATT_FS_LOW_ACT parameter.

Increment	Units
50	milliampere hour

BATT_CRT_VOLT: Critical battery voltage

Battery voltage that triggers a critical battery failsafe. Set to 0 to disable. If the battery voltage drops below this voltage continuously for more then the period specified by the BATT_LOW_TIMER parameter then the vehicle will perform the failsafe specified by the BATT_FS_CRT_ACT parameter.

Increment	Units
0.1	volt

BATT_CRT_MAH: Battery critical capacity

Battery capacity at which the critical battery failsafe is triggered. Set to 0 to disable battery remaining failsafe. If the battery capacity drops below this level the vehicle will perform the failsafe specified by the BATT__FS_CRT_ACT parameter.

Increment	Units
50	milliampere hour

BATT_FS_LOW_ACT: Low battery failsafe action

What action the vehicle should perform if it hits a low battery failsafe

Values
Value Meaning 0 None

BATT_FS_CRT_ACT: Critical battery failsafe action

What action the vehicle should perform if it hits a critical battery failsafe

Values
Value Meaning 0 None

BATT_ARM_VOLT: Required arming voltage

Note: This parameter is for advanced users

Battery voltage level which is required to arm the aircraft. Set to 0 to allow arming at any voltage.

Increment	Units
0.1	volt

BATT_ARM_MAH: Required arming remaining capacity

Note: This parameter is for advanced users

Battery capacity remaining which is required to arm the aircraft. Set to 0 to allow arming at any capacity. Note that execept for smart batteries rebooting the vehicle will always reset the remaining capacity estimate, which can lead to this check not providing sufficent protection, it is recommended to always use this in conjunction with the BATT__ARM_VOLT parameter.

Increment	Units
50	milliampere hour

BATT_OPTIONS: Battery monitor options

Note: This parameter is for advanced users

This sets options to change the behaviour of the battery monitor

Bitmask
Bit Meaning 0 Ignore DroneCAN SoC 1 MPPT reports input voltage and current 2 MPPT Powered off when disarmed 3 MPPT Powered on when armed 4 MPPT Powered off at boot 5 MPPT Powered on at boot 6 Send resistance compensated voltage to GCS

BATT_VOLT_PIN: Battery Voltage sensing pin

Note: Reboot required after change

Sets the analog input pin that should be used for voltage monitoring.

Values
Value Meaning -1 Disabled 2 Pixhawk/Pixracer/Navio2/Pixhawk2_PM1 5 Navigator 13 Pixhawk2_PM2/CubeOrange_PM2 14 CubeOrange 16 Durandal 100 PX4-v1

BATT_CURR_PIN: Battery Current sensing pin

Note: Reboot required after change

Sets the analog input pin that should be used for current monitoring.

Values
Value Meaning -1 Disabled 3 Pixhawk/Pixracer/Navio2/Pixhawk2_PM1 4 CubeOrange_PM2/Navigator 14 Pixhawk2_PM2 15 CubeOrange 17 Durandal 101 PX4-v1

BATT_VOLT_MULT: Voltage Multiplier

Note: This parameter is for advanced users

Used to convert the voltage of the voltage sensing pin (BATT_VOLT_PIN) to the actual battery's voltage (pin_voltage * VOLT_MULT). For the 3DR Power brick with a Pixhawk, this should be set to 10.1. For the Pixhawk with the 3DR 4in1 ESC this should be 12.02. For the PX using the PX4IO power supply this should be set to 1.

BATT_AMP_PERVLT: Amps per volt

Number of amps that a 1V reading on the current sensor corresponds to. With a Pixhawk using the 3DR Power brick this should be set to 17. For the Pixhawk with the 3DR 4in1 ESC this should be 17.

Units
ampere per volt

BATT_AMP_OFFSET: AMP offset

Voltage offset at zero current on current sensor

Units
volt

BATT_VLT_OFFSET: Volage offset

Note: This parameter is for advanced users

Voltage offset on voltage pin. This allows for an offset due to a diode. This voltage is subtracted before the scaling is applied

Units
volt

BATT_I2C_BUS: Battery monitor I2C bus number

Note: This parameter is for advanced users

Note: Reboot required after change

Battery monitor I2C bus number

Range
0 to 3

BATT_I2C_ADDR: Battery monitor I2C address

Note: This parameter is for advanced users

Note: Reboot required after change

Battery monitor I2C address

Range
0 to 127

BATT_SUM_MASK: Battery Sum mask

0: sum of remaining battery monitors, If none 0 sum of specified monitors. Current will be summed and voltages averaged.

Bitmask
Bit Meaning 0 monitor 1 1 monitor 2 2 monitor 3 3 monitor 4 4 monitor 5 5 monitor 6 6 monitor 7 7 monitor 8 8 monitor 9

BATT_CURR_MULT: Scales reported power monitor current

Note: This parameter is for advanced users

Multiplier applied to all current related reports to allow for adjustment if no UAVCAN param access or current splitting applications

Range
.1 to 10

BATT_FL_VLT_MIN: Empty fuel level voltage

Note: This parameter is for advanced users

The voltage seen on the analog pin when the fuel tank is empty. Note: For this type of battery monitor, the voltage seen by the analog pin is displayed as battery voltage on a GCS.

Range	Units
0.01 to 10	volt

BATT_FL_V_MULT: Fuel level voltage multiplier

Note: This parameter is for advanced users

Voltage multiplier to determine what the full tank voltage reading is. This is calculated as 1 / (Voltage_Full - Voltage_Empty) Note: For this type of battery monitor, the voltage seen by the analog pin is displayed as battery voltage on a GCS.

Range
0.01 to 10

BATT_FL_FLTR: Fuel level filter frequency

Note: This parameter is for advanced users

Note: Reboot required after change

Filter frequency in Hertz where a low pass filter is used. This is used to filter out tank slosh from the fuel level reading. A value of -1 disables the filter and unfiltered voltage is used to determine the fuel level. The suggested values at in the range of 0.2 Hz to 0.5 Hz.

Range	Units
-1 to 1	hertz

BATT_FL_PIN: Fuel level analog pin number

Analog input pin that fuel level sensor is connected to. Airspeed ports can be used for Analog input. When using analog pin 103, the maximum value of the input in 3.3V.

Values
Value Meaning -1 Not Used 11 Pixracer 13 Pixhawk ADC4 14 Pixhawk ADC3 15 Pixhawk ADC6/Pixhawk2 ADC 103 Pixhawk SBUS

BRD_ Parameters

BRD_SER1_RTSCTS: Serial 1 flow control

Note: This parameter is for advanced users

Note: Reboot required after change

Enable flow control on serial 1 (telemetry 1). You must have the RTS and CTS pins connected to your radio. The standard DF13 6 pin connector for a 3DR radio does have those pins connected. If this is set to 2 then flow control will be auto-detected by checking for the output buffer filling on startup. Note that the PX4v1 does not have hardware flow control pins on this port, so you should leave this disabled.

Values
Value Meaning 0 Disabled 1 Enabled 2 Auto

BRD_SER2_RTSCTS: Serial 2 flow control

Note: This parameter is for advanced users

Note: Reboot required after change

Enable flow control on serial 2 (telemetry 2). You must have the RTS and CTS pins connected to your radio. The standard DF13 6 pin connector for a 3DR radio does have those pins connected. If this is set to 2 then flow control will be auto-detected by checking for the output buffer filling on startup.

Values
Value Meaning 0 Disabled 1 Enabled 2 Auto

BRD_SER3_RTSCTS: Serial 3 flow control

Note: This parameter is for advanced users

Note: Reboot required after change

Enable flow control on serial 3. You must have the RTS and CTS pins connected to your radio. The standard DF13 6 pin connector for a 3DR radio does have those pins connected. If this is set to 2 then flow control will be auto-detected by checking for the output buffer filling on startup.

Values
Value Meaning 0 Disabled 1 Enabled 2 Auto

BRD_SER4_RTSCTS: Serial 4 flow control

Note: This parameter is for advanced users

Note: Reboot required after change

Enable flow control on serial 4. You must have the RTS and CTS pins connected to your radio. The standard DF13 6 pin connector for a 3DR radio does have those pins connected. If this is set to 2 then flow control will be auto-detected by checking for the output buffer filling on startup.

Values
Value Meaning 0 Disabled 1 Enabled 2 Auto

BRD_SER5_RTSCTS: Serial 5 flow control

Note: This parameter is for advanced users

Note: Reboot required after change

Enable flow control on serial 5. You must have the RTS and CTS pins connected to your radio. The standard DF13 6 pin connector for a 3DR radio does have those pins connected. If this is set to 2 then flow control will be auto-detected by checking for the output buffer filling on startup.

Values
Value Meaning 0 Disabled 1 Enabled 2 Auto

BRD_SAFETYENABLE: Enable use of safety arming switch

Note: Reboot required after change

This controls the default state of the safety switch at startup. When set to 1 the safety switch will start in the safe state (flashing) at boot. When set to zero the safety switch will start in the unsafe state (solid) at startup. Note that if a safety switch is fitted the user can still control the safety state after startup using the switch. The safety state can also be controlled in software using a MAVLink message.

Values
Value Meaning 0 Disabled 1 Enabled

BRD_SBUS_OUT: SBUS output rate

Note: This parameter is for advanced users

Note: Reboot required after change

This sets the SBUS output frame rate in Hz

Values
Value Meaning 0 Disabled 1 50Hz 2 75Hz 3 100Hz 4 150Hz 5 200Hz 6 250Hz 7 300Hz

BRD_SERIAL_NUM: User-defined serial number

User-defined serial number of this vehicle, it can be any arbitrary number you want and has no effect on the autopilot

Range
-8388608 to 8388607

BRD_SAFETY_MASK: Outputs which ignore the safety switch state

Note: This parameter is for advanced users

Note: Reboot required after change

A bitmask which controls what outputs can move while the safety switch has not been pressed

Bitmask
Bit Meaning 0 Output1 1 Output2 2 Output3 3 Output4 4 Output5 5 Output6 6 Output7 7 Output8 8 Output9 9 Output10 10 Output11 11 Output12 12 Output13 13 Output14

BRD_HEAT_TARG: Board heater temperature target

Note: This parameter is for advanced users

Board heater target temperature for boards with controllable heating units. DO NOT SET to -1 on the Cube. Set to -1 to disable the heater, please reboot after setting to -1.

Range	Units
-1 to 80	degrees Celsius

BRD_TYPE: Board type

Note: This parameter is for advanced users

Note: Reboot required after change

This allows selection of a PX4 or VRBRAIN board type. If set to zero then the board type is auto-detected (PX4)

Values
Value Meaning 0 AUTO 1 PX4V1 2 Pixhawk 3 Cube/Pixhawk2 4 Pixracer 5 PixhawkMini 6 Pixhawk2Slim 13 Intel Aero FC 14 Pixhawk Pro 20 AUAV2.1 21 PCNC1 22 MINDPXV2 23 SP01 24 CUAVv5/FMUV5 30 VRX BRAIN51 32 VRX BRAIN52 33 VRX BRAIN52E 34 VRX UBRAIN51 35 VRX UBRAIN52 36 VRX CORE10 38 VRX BRAIN54 39 PX4 FMUV6 100 PX4 OLDDRIVERS

BRD_IO_ENABLE: Enable IO co-processor

Note: This parameter is for advanced users

Note: Reboot required after change

This allows for the IO co-processor on FMUv1 and FMUv2 to be disabled

Values
Value Meaning 0 Disabled 1 Enabled

BRD_SAFETYOPTION: Options for safety button behavior

This controls the activation of the safety button. It allows you to control if the safety button can be used for safety enable and/or disable, and whether the button is only active when disarmed

Bitmask
Bit Meaning 0 ActiveForSafetyEnable 1 ActiveForSafetyDisable 2 ActiveWhenArmed 3 Force safety on when the aircraft disarms

BRD_VBUS_MIN: Autopilot board voltage requirement

Note: This parameter is for advanced users

Minimum voltage on the autopilot power rail to allow the aircraft to arm. 0 to disable the check.

Increment	Range	Units
0.1	4.0 to 5.5	volt

BRD_VSERVO_MIN: Servo voltage requirement

Note: This parameter is for advanced users

Minimum voltage on the servo rail to allow the aircraft to arm. 0 to disable the check.

Increment	Range	Units
0.1	3.3 to 12.0	volt

BRD_SD_SLOWDOWN: microSD slowdown

Note: This parameter is for advanced users

This is a scaling factor to slow down microSD operation. It can be used on flight board and microSD card combinations where full speed is not reliable. For normal full speed operation a value of 0 should be used.

Increment	Range
1	0 to 32

BRD_PWM_VOLT_SEL: Set PWM Out Voltage

Note: This parameter is for advanced users

This sets the voltage max for PWM output pulses. 0 for 3.3V and 1 for 5V output.

Values
Value Meaning 0 3.3V 1 5V

BRD_OPTIONS: Board options

Note: This parameter is for advanced users

Board specific option flags

Bitmask
Bit Meaning 0 Enable hardware watchdog 1 Disable MAVftp 2 Enable set of internal parameters 3 Enable Debug Pins 4 Unlock flash on reboot 5 Write protect firmware flash on reboot 6 Write protect bootloader flash on reboot

BRD_BOOT_DELAY: Boot delay

Note: This parameter is for advanced users

This adds a delay in milliseconds to boot to ensure peripherals initialise fully

Range	Units
0 to 10000	milliseconds

BRD_HEAT_P: Board Heater P gain

Note: This parameter is for advanced users

Board Heater P gain

Increment	Range
1	1 to 500

BRD_HEAT_I: Board Heater I gain

Note: This parameter is for advanced users

Board Heater integrator gain

Increment	Range
0.1	0 to 1

BRD_HEAT_IMAX: Board Heater IMAX

Note: This parameter is for advanced users

Board Heater integrator maximum

Increment	Range
1	0 to 100

BRD_ALT_CONFIG: Alternative HW config

Note: This parameter is for advanced users

Note: Reboot required after change

Select an alternative hardware configuration. A value of zero selects the default configuration for this board. Other values are board specific. Please see the documentation for your board for details on any alternative configuration values that may be available.

Increment	Range
1	0 to 10

BRD_HEAT_LOWMGN: Board heater temp lower margin

Note: This parameter is for advanced users

Arming check will fail if temp is lower than this margin below BRD_HEAT_TARG. 0 disables the low temperature check

Range	Units
0 to 20	degrees Celsius

BRD_RADIO Parameters

BRD_RADIO_TYPE: Set type of direct attached radio

This enables support for direct attached radio receivers

Values
Value Meaning 0 None 1 CYRF6936 2 CC2500 3 BK2425

BRD_RADIO_PROT: protocol

Note: This parameter is for advanced users

Select air protocol

Values
Value Meaning 0 Auto 1 DSM2 2 DSMX

BRD_RADIO_DEBUG: debug level

Note: This parameter is for advanced users

radio debug level

Range
0 to 4

BRD_RADIO_DISCRC: disable receive CRC

Note: This parameter is for advanced users

disable receive CRC (for debug)

Values
Value Meaning 0 NotDisabled 1 Disabled

BRD_RADIO_SIGCH: RSSI signal strength

Note: This parameter is for advanced users

Channel to show receive RSSI signal strength, or zero for disabled

Range
0 to 16

BRD_RADIO_PPSCH: Packet rate channel

Note: This parameter is for advanced users

Channel to show received packet-per-second rate, or zero for disabled

Range
0 to 16

BRD_RADIO_TELEM: Enable telemetry

Note: This parameter is for advanced users

If this is non-zero then telemetry packets will be sent over DSM

Values
Value Meaning 0 Disabled 1 Enabled

BRD_RADIO_TXPOW: Telemetry Transmit power

Note: This parameter is for advanced users

Set telemetry transmit power. This is the power level (from 1 to 8) for telemetry packets sent from the RX to the TX

Range
1 to 8

BRD_RADIO_FCCTST: Put radio into FCC test mode

Note: This parameter is for advanced users

If this is enabled then the radio will continuously transmit as required for FCC testing. The transmit channel is set by the value of the parameter. The radio will not work for RC input while this is enabled

Values
Value Meaning 0 Disabled 1 MinChannel 2 MidChannel 3 MaxChannel 4 MinChannelCW 5 MidChannelCW 6 MaxChannelCW

BRD_RADIO_STKMD: Stick input mode

Note: This parameter is for advanced users

This selects between different stick input modes. The default is mode2, which has throttle on the left stick and pitch on the right stick. You can instead set mode1, which has throttle on the right stick and pitch on the left stick.

Values
Value Meaning 1 Mode1 2 Mode2

BRD_RADIO_TESTCH: Set radio to factory test channel

Note: This parameter is for advanced users

This sets the radio to a fixed test channel for factory testing. Using a fixed channel avoids the need for binding in factory testing.

Values
Value Meaning 0 Disabled 1 TestChan1 2 TestChan2 3 TestChan3 4 TestChan4 5 TestChan5 6 TestChan6 7 TestChan7 8 TestChan8

BRD_RADIO_TSIGCH: RSSI value channel for telemetry data on transmitter

Note: This parameter is for advanced users

Channel to show telemetry RSSI value as received by TX

Range
0 to 16

BRD_RADIO_TPPSCH: Telemetry PPS channel

Note: This parameter is for advanced users

Channel to show telemetry packets-per-second value, as received at TX

Range
0 to 16

BRD_RADIO_TXMAX: Transmitter transmit power

Note: This parameter is for advanced users

Set transmitter maximum transmit power (from 1 to 8)

Range
1 to 8

BRD_RADIO_BZOFS: Transmitter buzzer adjustment

Note: This parameter is for advanced users

Set transmitter buzzer note adjustment (adjust frequency up)

Range
0 to 40

BRD_RADIO_ABTIME: Auto-bind time

Note: This parameter is for advanced users

When non-zero this sets the time with no transmitter packets before we start looking for auto-bind packets.

Range
0 to 120

BRD_RADIO_ABLVL: Auto-bind level

Note: This parameter is for advanced users

This sets the minimum RSSI of an auto-bind packet for it to be accepted. This should be set so that auto-bind will only happen at short range to minimise the change of an auto-bind happening accidentially

Range
0 to 31

BRD_RTC Parameters

BRD_RTC_TYPES: Allowed sources of RTC time

Note: This parameter is for advanced users

Specifies which sources of UTC time will be accepted

Bitmask
Bit Meaning 0 GPS 1 MAVLINK_SYSTEM_TIME 2 HW

BRD_RTC_TZ_MIN: Timezone offset from UTC

Note: This parameter is for advanced users

Adds offset in +- minutes from UTC to calculate local time

Range
-720 to +840

CAM_RC_ Parameters

CAM_RC_TYPE: RunCam device type

RunCam deviee type used to determine OSD menu structure and shutter options.

Values
Value Meaning 0 Disabled 1 RunCam Split Micro/RunCam with UART 2 RunCam Split 3 RunCam Split4 4k 4 RunCam Hybrid

CAM_RC_FEATURES: RunCam features available

Note: This parameter is for advanced users

The available features of the attached RunCam device. If 0 then the RunCam device will be queried for the features it supports, otherwise this setting is used.

Bitmask
Bit Meaning 0 Power Button 1 WiFi Button 2 Change Mode 3 5-Key OSD 4 Settings Access 5 DisplayPort 6 Start Recording 7 Stop Recording

CAM_RC_BT_DELAY: RunCam boot delay before allowing updates

Note: This parameter is for advanced users

Time it takes for the RunCam to become fully ready in ms. If this is too short then commands can get out of sync.

CAM_RC_BTN_DELAY: RunCam button delay before allowing further button presses

Note: This parameter is for advanced users

Time it takes for the a RunCam button press to be actived in ms. If this is too short then commands can get out of sync.

CAM_RC_MDE_DELAY: RunCam mode delay before allowing further button presses

Note: This parameter is for advanced users

Time it takes for the a RunCam mode button press to be actived in ms. If a mode change first requires a video recording change then double this value is used. If this is too short then commands can get out of sync.

CAM_RC_CONTROL: RunCam control option

Note: This parameter is for advanced users

Specifies the allowed actions required to enter the OSD menu

Bitmask
Bit Meaning 0 Stick yaw right 1 Stick roll right 2 3-position switch 3 2-position switch 4 Autorecording enabled

CAN_ Parameters

CAN_LOGLEVEL: Loglevel

Note: This parameter is for advanced users

Loglevel for recording initialisation and debug information from CAN Interface

Range	Values
0 to 4	Value Meaning 0 Log None 1 Log Error 2 Log Warning and below 3 Log Info and below 4 Log Everything

CAN_D1_ Parameters

CAN_D1_PROTOCOL: Enable use of specific protocol over virtual driver

Note: This parameter is for advanced users

Note: Reboot required after change

Enabling this option starts selected protocol that will use this virtual driver

Values
Value Meaning 0 Disabled 1 DroneCAN 4 PiccoloCAN 5 CANTester 6 EFI_NWPMU 7 USD1 8 KDECAN 10 Scripting 11 Benewake 12 Scripting2

CAN_D1_KDE_ Parameters

CAN_D1_KDE_NPOLE: Number of motor poles

Sets the number of motor poles to calculate the correct RPM value

CAN_D1_PC_ Parameters

CAN_D1_PC_ESC_BM: ESC channels

Note: This parameter is for advanced users

Bitmask defining which ESC (motor) channels are to be transmitted over Piccolo CAN

Bitmask
Bit Meaning 0 ESC 1 1 ESC 2 2 ESC 3 3 ESC 4 4 ESC 5 5 ESC 6 6 ESC 7 7 ESC 8 8 ESC 9 9 ESC 10 10 ESC 11 11 ESC 12 12 ESC 13 13 ESC 14 14 ESC 15 15 ESC 16 16 ESC 17 17 ESC 18 18 ESC 19 19 ESC 20 20 ESC 21 21 ESC 22 22 ESC 23 23 ESC 24 24 ESC 25 25 ESC 26 26 ESC 27 27 ESC 28 28 ESC 29 29 ESC 30 30 ESC 31 31 ESC 32

CAN_D1_PC_ESC_RT: ESC output rate

Note: This parameter is for advanced users

Output rate of ESC command messages

Range	Units
1 to 500	hertz

CAN_D1_PC_SRV_BM: Servo channels

Note: This parameter is for advanced users

Bitmask defining which servo channels are to be transmitted over Piccolo CAN

Bitmask
Bit Meaning 0 Servo 1 1 Servo 2 2 Servo 3 3 Servo 4 4 Servo 5 5 Servo 6 6 Servo 7 7 Servo 8 8 Servo 9 9 Servo 10 10 Servo 11 11 Servo 12 12 Servo 13 13 Servo 14 14 Servo 15 15 Servo 16

CAN_D1_PC_SRV_RT: Servo command output rate

Note: This parameter is for advanced users

Output rate of servo command messages

Range	Units
1 to 500	hertz

CAN_D1_PC_ECU_ID: ECU Node ID

Note: This parameter is for advanced users

Node ID to send ECU throttle messages to. Set to zero to disable ECU throttle messages. Set to 255 to broadcast to all ECUs.

Range
0 to 255

CAN_D1_PC_ECU_RT: ECU command output rate

Note: This parameter is for advanced users

Output rate of ECU command messages

Range	Units
1 to 500	hertz

CAN_D1_TST_ Parameters

CAN_D1_TST_ID: CAN Test Index

Note: This parameter is for advanced users

Selects the Index of Test that needs to be run recursively, this value gets reset to 0 at boot.

Range	Values
0 to 4	Value Meaning 0 TEST_NONE 1 TEST_LOOPBACK 2 TEST_BUSOFF_RECOVERY 3 TEST_UAVCAN_DNA 5 TEST_KDE_CAN 6 TEST_UAVCAN_ESC 7 TEST_UAVCAN_FD_ESC

CAN_D1_TST_LPR8: CANTester LoopRate

Note: This parameter is for advanced users

Selects the Looprate of Test methods

Units
microseconds

CAN_D1_UC_ Parameters

CAN_D1_UC_NODE: UAVCAN node that is used for this network

Note: This parameter is for advanced users

UAVCAN node should be set implicitly

Range
1 to 250

CAN_D1_UC_SRV_BM: Output channels to be transmitted as servo over UAVCAN

Bitmask with one set for channel to be transmitted as a servo command over UAVCAN

Bitmask
Bit Meaning 0 Servo 1 1 Servo 2 2 Servo 3 3 Servo 4 4 Servo 5 5 Servo 6 6 Servo 7 7 Servo 8 8 Servo 9 9 Servo 10 10 Servo 11 11 Servo 12 12 Servo 13 13 Servo 14 14 Servo 15 15 Servo 16 16 Servo 17 17 Servo 18 18 Servo 19 19 Servo 20 20 Servo 21 21 Servo 22 22 Servo 23 23 Servo 24 24 Servo 25 25 Servo 26 26 Servo 27 27 Servo 28 28 Servo 29 29 Servo 30 30 Servo 31 31 Servo 32

CAN_D1_UC_ESC_BM: Output channels to be transmitted as ESC over UAVCAN

Note: This parameter is for advanced users

Bitmask with one set for channel to be transmitted as a ESC command over UAVCAN

Bitmask
Bit Meaning 0 ESC 1 1 ESC 2 2 ESC 3 3 ESC 4 4 ESC 5 5 ESC 6 6 ESC 7 7 ESC 8 8 ESC 9 9 ESC 10 10 ESC 11 11 ESC 12 12 ESC 13 13 ESC 14 14 ESC 15 15 ESC 16 16 ESC 17 17 ESC 18 18 ESC 19 19 ESC 20 20 ESC 21 21 ESC 22 22 ESC 23 23 ESC 24 24 ESC 25 25 ESC 26 26 ESC 27 27 ESC 28 28 ESC 29 29 ESC 30 30 ESC 31 31 ESC 32

CAN_D1_UC_SRV_RT: Servo output rate

Note: This parameter is for advanced users

Maximum transmit rate for servo outputs

Range	Units
1 to 200	hertz

CAN_D1_UC_OPTION: UAVCAN options

Note: This parameter is for advanced users

Option flags

Bitmask
Bit Meaning 0 ClearDNADatabase 1 IgnoreDNANodeConflicts 2 EnableCanfd 3 IgnoreDNANodeUnhealthy

CAN_D1_UC_NTF_RT: Notify State rate

Note: This parameter is for advanced users

Maximum transmit rate for Notify State Message

Range	Units
1 to 200	hertz

CAN_D1_UC_ESC_OF: ESC Output channels offset

Note: This parameter is for advanced users

Offset for ESC numbering in DroneCAN ESC RawCommand messages. This allows for more efficient packing of ESC command messages. If your ESCs are on servo functions 5 to 8 and you set this parameter to 4 then the ESC RawCommand will be sent with the first 4 slots filled. This can be used for more efficint usage of CAN bandwidth

Range
0 to 18

CAN_D1_UC_POOL: CAN pool size

Note: This parameter is for advanced users

Amount of memory in bytes to allocate for the DroneCAN memory pool. More memory is needed for higher CAN bus loads

Range
1024 to 16384

CAN_D2_ Parameters

CAN_D2_PROTOCOL: Enable use of specific protocol over virtual driver

Note: This parameter is for advanced users

Note: Reboot required after change

Enabling this option starts selected protocol that will use this virtual driver

Values
Value Meaning 0 Disabled 1 DroneCAN 4 PiccoloCAN 5 CANTester 6 EFI_NWPMU 7 USD1 8 KDECAN 10 Scripting 11 Benewake 12 Scripting2

CAN_D2_KDE_ Parameters

CAN_D2_KDE_NPOLE: Number of motor poles

Sets the number of motor poles to calculate the correct RPM value

CAN_D2_PC_ Parameters

CAN_D2_PC_ESC_BM: ESC channels

Note: This parameter is for advanced users

Bitmask defining which ESC (motor) channels are to be transmitted over Piccolo CAN

Bitmask
Bit Meaning 0 ESC 1 1 ESC 2 2 ESC 3 3 ESC 4 4 ESC 5 5 ESC 6 6 ESC 7 7 ESC 8 8 ESC 9 9 ESC 10 10 ESC 11 11 ESC 12 12 ESC 13 13 ESC 14 14 ESC 15 15 ESC 16 16 ESC 17 17 ESC 18 18 ESC 19 19 ESC 20 20 ESC 21 21 ESC 22 22 ESC 23 23 ESC 24 24 ESC 25 25 ESC 26 26 ESC 27 27 ESC 28 28 ESC 29 29 ESC 30 30 ESC 31 31 ESC 32

CAN_D2_PC_ESC_RT: ESC output rate

Note: This parameter is for advanced users

Output rate of ESC command messages

Range	Units
1 to 500	hertz

CAN_D2_PC_SRV_BM: Servo channels

Note: This parameter is for advanced users

Bitmask defining which servo channels are to be transmitted over Piccolo CAN

Bitmask
Bit Meaning 0 Servo 1 1 Servo 2 2 Servo 3 3 Servo 4 4 Servo 5 5 Servo 6 6 Servo 7 7 Servo 8 8 Servo 9 9 Servo 10 10 Servo 11 11 Servo 12 12 Servo 13 13 Servo 14 14 Servo 15 15 Servo 16

CAN_D2_PC_SRV_RT: Servo command output rate

Note: This parameter is for advanced users

Output rate of servo command messages

Range	Units
1 to 500	hertz

CAN_D2_PC_ECU_ID: ECU Node ID

Note: This parameter is for advanced users

Node ID to send ECU throttle messages to. Set to zero to disable ECU throttle messages. Set to 255 to broadcast to all ECUs.

Range
0 to 255

CAN_D2_PC_ECU_RT: ECU command output rate

Note: This parameter is for advanced users

Output rate of ECU command messages

Range	Units
1 to 500	hertz

CAN_D2_TST_ Parameters

CAN_D2_TST_ID: CAN Test Index

Note: This parameter is for advanced users

Selects the Index of Test that needs to be run recursively, this value gets reset to 0 at boot.

Range	Values
0 to 4	Value Meaning 0 TEST_NONE 1 TEST_LOOPBACK 2 TEST_BUSOFF_RECOVERY 3 TEST_UAVCAN_DNA 5 TEST_KDE_CAN 6 TEST_UAVCAN_ESC 7 TEST_UAVCAN_FD_ESC

CAN_D2_TST_LPR8: CANTester LoopRate

Note: This parameter is for advanced users

Selects the Looprate of Test methods

Units
microseconds

CAN_D2_UC_ Parameters

CAN_D2_UC_NODE: UAVCAN node that is used for this network

Note: This parameter is for advanced users

UAVCAN node should be set implicitly

Range
1 to 250

CAN_D2_UC_SRV_BM: Output channels to be transmitted as servo over UAVCAN

Bitmask with one set for channel to be transmitted as a servo command over UAVCAN

Bitmask
Bit Meaning 0 Servo 1 1 Servo 2 2 Servo 3 3 Servo 4 4 Servo 5 5 Servo 6 6 Servo 7 7 Servo 8 8 Servo 9 9 Servo 10 10 Servo 11 11 Servo 12 12 Servo 13 13 Servo 14 14 Servo 15 15 Servo 16 16 Servo 17 17 Servo 18 18 Servo 19 19 Servo 20 20 Servo 21 21 Servo 22 22 Servo 23 23 Servo 24 24 Servo 25 25 Servo 26 26 Servo 27 27 Servo 28 28 Servo 29 29 Servo 30 30 Servo 31 31 Servo 32

CAN_D2_UC_ESC_BM: Output channels to be transmitted as ESC over UAVCAN

Note: This parameter is for advanced users

Bitmask with one set for channel to be transmitted as a ESC command over UAVCAN

Bitmask
Bit Meaning 0 ESC 1 1 ESC 2 2 ESC 3 3 ESC 4 4 ESC 5 5 ESC 6 6 ESC 7 7 ESC 8 8 ESC 9 9 ESC 10 10 ESC 11 11 ESC 12 12 ESC 13 13 ESC 14 14 ESC 15 15 ESC 16 16 ESC 17 17 ESC 18 18 ESC 19 19 ESC 20 20 ESC 21 21 ESC 22 22 ESC 23 23 ESC 24 24 ESC 25 25 ESC 26 26 ESC 27 27 ESC 28 28 ESC 29 29 ESC 30 30 ESC 31 31 ESC 32

CAN_D2_UC_SRV_RT: Servo output rate

Note: This parameter is for advanced users

Maximum transmit rate for servo outputs

Range	Units
1 to 200	hertz

CAN_D2_UC_OPTION: UAVCAN options

Note: This parameter is for advanced users

Option flags

Bitmask
Bit Meaning 0 ClearDNADatabase 1 IgnoreDNANodeConflicts 2 EnableCanfd 3 IgnoreDNANodeUnhealthy

CAN_D2_UC_NTF_RT: Notify State rate

Note: This parameter is for advanced users

Maximum transmit rate for Notify State Message

Range	Units
1 to 200	hertz

CAN_D2_UC_ESC_OF: ESC Output channels offset

Note: This parameter is for advanced users

Offset for ESC numbering in DroneCAN ESC RawCommand messages. This allows for more efficient packing of ESC command messages. If your ESCs are on servo functions 5 to 8 and you set this parameter to 4 then the ESC RawCommand will be sent with the first 4 slots filled. This can be used for more efficint usage of CAN bandwidth

Range
0 to 18

CAN_D2_UC_POOL: CAN pool size

Note: This parameter is for advanced users

Amount of memory in bytes to allocate for the DroneCAN memory pool. More memory is needed for higher CAN bus loads

Range
1024 to 16384

CAN_D3_ Parameters

CAN_D3_PROTOCOL: Enable use of specific protocol over virtual driver

Note: This parameter is for advanced users

Note: Reboot required after change

Enabling this option starts selected protocol that will use this virtual driver

Values
Value Meaning 0 Disabled 1 DroneCAN 4 PiccoloCAN 5 CANTester 6 EFI_NWPMU 7 USD1 8 KDECAN 10 Scripting 11 Benewake 12 Scripting2

CAN_D3_KDE_ Parameters

CAN_D3_KDE_NPOLE: Number of motor poles

Sets the number of motor poles to calculate the correct RPM value

CAN_D3_PC_ Parameters

CAN_D3_PC_ESC_BM: ESC channels

Note: This parameter is for advanced users

Bitmask defining which ESC (motor) channels are to be transmitted over Piccolo CAN

Bitmask
Bit Meaning 0 ESC 1 1 ESC 2 2 ESC 3 3 ESC 4 4 ESC 5 5 ESC 6 6 ESC 7 7 ESC 8 8 ESC 9 9 ESC 10 10 ESC 11 11 ESC 12 12 ESC 13 13 ESC 14 14 ESC 15 15 ESC 16 16 ESC 17 17 ESC 18 18 ESC 19 19 ESC 20 20 ESC 21 21 ESC 22 22 ESC 23 23 ESC 24 24 ESC 25 25 ESC 26 26 ESC 27 27 ESC 28 28 ESC 29 29 ESC 30 30 ESC 31 31 ESC 32

CAN_D3_PC_ESC_RT: ESC output rate

Note: This parameter is for advanced users

Output rate of ESC command messages

Range	Units
1 to 500	hertz

CAN_D3_PC_SRV_BM: Servo channels

Note: This parameter is for advanced users

Bitmask defining which servo channels are to be transmitted over Piccolo CAN

Bitmask
Bit Meaning 0 Servo 1 1 Servo 2 2 Servo 3 3 Servo 4 4 Servo 5 5 Servo 6 6 Servo 7 7 Servo 8 8 Servo 9 9 Servo 10 10 Servo 11 11 Servo 12 12 Servo 13 13 Servo 14 14 Servo 15 15 Servo 16

CAN_D3_PC_SRV_RT: Servo command output rate

Note: This parameter is for advanced users

Output rate of servo command messages

Range	Units
1 to 500	hertz

CAN_D3_PC_ECU_ID: ECU Node ID

Note: This parameter is for advanced users

Node ID to send ECU throttle messages to. Set to zero to disable ECU throttle messages. Set to 255 to broadcast to all ECUs.

Range
0 to 255

CAN_D3_PC_ECU_RT: ECU command output rate

Note: This parameter is for advanced users

Output rate of ECU command messages

Range	Units
1 to 500	hertz

CAN_D3_TST_ Parameters

CAN_D3_TST_ID: CAN Test Index

Note: This parameter is for advanced users

Selects the Index of Test that needs to be run recursively, this value gets reset to 0 at boot.

Range	Values
0 to 4	Value Meaning 0 TEST_NONE 1 TEST_LOOPBACK 2 TEST_BUSOFF_RECOVERY 3 TEST_UAVCAN_DNA 5 TEST_KDE_CAN 6 TEST_UAVCAN_ESC 7 TEST_UAVCAN_FD_ESC

CAN_D3_TST_LPR8: CANTester LoopRate

Note: This parameter is for advanced users

Selects the Looprate of Test methods

Units
microseconds

CAN_D3_UC_ Parameters

CAN_D3_UC_NODE: UAVCAN node that is used for this network

Note: This parameter is for advanced users

UAVCAN node should be set implicitly

Range
1 to 250

CAN_D3_UC_SRV_BM: Output channels to be transmitted as servo over UAVCAN

Bitmask with one set for channel to be transmitted as a servo command over UAVCAN

Bitmask
Bit Meaning 0 Servo 1 1 Servo 2 2 Servo 3 3 Servo 4 4 Servo 5 5 Servo 6 6 Servo 7 7 Servo 8 8 Servo 9 9 Servo 10 10 Servo 11 11 Servo 12 12 Servo 13 13 Servo 14 14 Servo 15 15 Servo 16 16 Servo 17 17 Servo 18 18 Servo 19 19 Servo 20 20 Servo 21 21 Servo 22 22 Servo 23 23 Servo 24 24 Servo 25 25 Servo 26 26 Servo 27 27 Servo 28 28 Servo 29 29 Servo 30 30 Servo 31 31 Servo 32

CAN_D3_UC_ESC_BM: Output channels to be transmitted as ESC over UAVCAN

Note: This parameter is for advanced users

Bitmask with one set for channel to be transmitted as a ESC command over UAVCAN

Bitmask
Bit Meaning 0 ESC 1 1 ESC 2 2 ESC 3 3 ESC 4 4 ESC 5 5 ESC 6 6 ESC 7 7 ESC 8 8 ESC 9 9 ESC 10 10 ESC 11 11 ESC 12 12 ESC 13 13 ESC 14 14 ESC 15 15 ESC 16 16 ESC 17 17 ESC 18 18 ESC 19 19 ESC 20 20 ESC 21 21 ESC 22 22 ESC 23 23 ESC 24 24 ESC 25 25 ESC 26 26 ESC 27 27 ESC 28 28 ESC 29 29 ESC 30 30 ESC 31 31 ESC 32

CAN_D3_UC_SRV_RT: Servo output rate

Note: This parameter is for advanced users

Maximum transmit rate for servo outputs

Range	Units
1 to 200	hertz

CAN_D3_UC_OPTION: UAVCAN options

Note: This parameter is for advanced users

Option flags

Bitmask
Bit Meaning 0 ClearDNADatabase 1 IgnoreDNANodeConflicts 2 EnableCanfd 3 IgnoreDNANodeUnhealthy

CAN_D3_UC_NTF_RT: Notify State rate

Note: This parameter is for advanced users

Maximum transmit rate for Notify State Message

Range	Units
1 to 200	hertz

CAN_D3_UC_ESC_OF: ESC Output channels offset

Note: This parameter is for advanced users

Offset for ESC numbering in DroneCAN ESC RawCommand messages. This allows for more efficient packing of ESC command messages. If your ESCs are on servo functions 5 to 8 and you set this parameter to 4 then the ESC RawCommand will be sent with the first 4 slots filled. This can be used for more efficint usage of CAN bandwidth

Range
0 to 18

CAN_D3_UC_POOL: CAN pool size

Note: This parameter is for advanced users

Amount of memory in bytes to allocate for the DroneCAN memory pool. More memory is needed for higher CAN bus loads

Range
1024 to 16384

CAN_P1_ Parameters

CAN_P1_DRIVER: Index of virtual driver to be used with physical CAN interface

Note: Reboot required after change

Enabling this option enables use of CAN buses.

Values
Value Meaning 0 Disabled 1 First driver 2 Second driver 3 Third driver

CAN_P1_BITRATE: Bitrate of CAN interface

Note: This parameter is for advanced users

Bit rate can be set up to from 10000 to 1000000

Range
10000 to 1000000

CAN_P1_FDBITRATE: Bitrate of CANFD interface

Note: This parameter is for advanced users

Bit rate can be set up to from 1000000 to 8000000

Values
Value Meaning 1 1M 2 2M 4 4M 5 5M 8 8M

CAN_P2_ Parameters

CAN_P2_DRIVER: Index of virtual driver to be used with physical CAN interface

Note: Reboot required after change

Enabling this option enables use of CAN buses.

Values
Value Meaning 0 Disabled 1 First driver 2 Second driver 3 Third driver

CAN_P2_BITRATE: Bitrate of CAN interface

Note: This parameter is for advanced users

Bit rate can be set up to from 10000 to 1000000

Range
10000 to 1000000

CAN_P2_FDBITRATE: Bitrate of CANFD interface

Note: This parameter is for advanced users

Bit rate can be set up to from 1000000 to 8000000

Values
Value Meaning 1 1M 2 2M 4 4M 5 5M 8 8M

CAN_P3_ Parameters

CAN_P3_DRIVER: Index of virtual driver to be used with physical CAN interface

Note: Reboot required after change

Enabling this option enables use of CAN buses.

Values
Value Meaning 0 Disabled 1 First driver 2 Second driver 3 Third driver

CAN_P3_BITRATE: Bitrate of CAN interface

Note: This parameter is for advanced users

Bit rate can be set up to from 10000 to 1000000

Range
10000 to 1000000

CAN_P3_FDBITRATE: Bitrate of CANFD interface

Note: This parameter is for advanced users

Bit rate can be set up to from 1000000 to 8000000

Values
Value Meaning 1 1M 2 2M 4 4M 5 5M 8 8M

CAN_SLCAN_ Parameters

CAN_SLCAN_CPORT: SLCAN Route

Note: Reboot required after change

CAN Interface ID to be routed to SLCAN, 0 means no routing

Values
Value Meaning 0 Disabled 1 First interface 2 Second interface

CAN_SLCAN_SERNUM: SLCAN Serial Port

Serial Port ID to be used for temporary SLCAN iface, -1 means no temporary serial. This parameter is automatically reset on reboot or on timeout. See CAN_SLCAN_TIMOUT for timeout details

Values
Value Meaning -1 Disabled 0 Serial0 1 Serial1 2 Serial2 3 Serial3 4 Serial4 5 Serial5 6 Serial6

CAN_SLCAN_TIMOUT: SLCAN Timeout

Duration of inactivity after which SLCAN is switched back to original driver in seconds.

Range
0 to 127

CAN_SLCAN_SDELAY: SLCAN Start Delay

Duration after which slcan starts after setting SERNUM in seconds.

Range
0 to 127

COMPASS_ Parameters

COMPASS_OFS_X: Compass offsets in milligauss on the X axis

Note: This parameter is for advanced users

Offset to be added to the compass x-axis values to compensate for metal in the frame

Calibration	Increment	Range	Units
1	1	-400 to 400	milligauss

COMPASS_OFS_Y: Compass offsets in milligauss on the Y axis

Note: This parameter is for advanced users

Offset to be added to the compass y-axis values to compensate for metal in the frame

Calibration	Increment	Range	Units
1	1	-400 to 400	milligauss

COMPASS_OFS_Z: Compass offsets in milligauss on the Z axis

Note: This parameter is for advanced users

Offset to be added to the compass z-axis values to compensate for metal in the frame

Increment	Range	Units
1	-400 to 400	milligauss

COMPASS_DEC: Compass declination

An angle to compensate between the true north and magnetic north

Increment	Range	Units
0.01	-3.142 to 3.142	radians

COMPASS_LEARN: Learn compass offsets automatically

Note: This parameter is for advanced users

Enable or disable the automatic learning of compass offsets. You can enable learning either using a compass-only method that is suitable only for fixed wing aircraft or using the offsets learnt by the active EKF state estimator. If this option is enabled then the learnt offsets are saved when you disarm the vehicle. If InFlight learning is enabled then the compass with automatically start learning once a flight starts (must be armed). While InFlight learning is running you cannot use position control modes.

Values
Value Meaning 0 Disabled 1 Internal-Learning 2 EKF-Learning 3 InFlight-Learning

COMPASS_USE: Use compass for yaw

Note: This parameter is for advanced users

Enable or disable the use of the compass (instead of the GPS) for determining heading

Values
Value Meaning 0 Disabled 1 Enabled

COMPASS_AUTODEC: Auto Declination

Note: This parameter is for advanced users

Enable or disable the automatic calculation of the declination based on gps location

Values
Value Meaning 0 Disabled 1 Enabled

COMPASS_MOTCT: Motor interference compensation type

Note: This parameter is for advanced users

Set motor interference compensation type to disabled, throttle or current. Do not change manually.

Calibration	Values
1	Value Meaning 0 Disabled 1 Use Throttle 2 Use Current

COMPASS_MOT_X: Motor interference compensation for body frame X axis

Note: This parameter is for advanced users

Multiplied by the current throttle and added to the compass's x-axis values to compensate for motor interference (Offset per Amp or at Full Throttle)

Calibration	Increment	Range	Units
1	1	-1000 to 1000	milligauss per ampere

COMPASS_MOT_Y: Motor interference compensation for body frame Y axis

Note: This parameter is for advanced users

Multiplied by the current throttle and added to the compass's y-axis values to compensate for motor interference (Offset per Amp or at Full Throttle)

Calibration	Increment	Range	Units
1	1	-1000 to 1000	milligauss per ampere

COMPASS_MOT_Z: Motor interference compensation for body frame Z axis

Note: This parameter is for advanced users

Multiplied by the current throttle and added to the compass's z-axis values to compensate for motor interference (Offset per Amp or at Full Throttle)

Increment	Range	Units
1	-1000 to 1000	milligauss per ampere

COMPASS_ORIENT: Compass orientation

Note: This parameter is for advanced users

The orientation of the first external compass relative to the vehicle frame. This value will be ignored unless this compass is set as an external compass. When set correctly in the northern hemisphere, pointing the nose and right side down should increase the MagX and MagY values respectively. Rolling the vehicle upside down should decrease the MagZ value. For southern hemisphere, switch increase and decrease. NOTE: For internal compasses, AHRS_ORIENT is used. The label for each option is specified in the order of rotations for that orientation. Firmware versions 4.2 and prior can use a CUSTOM (100) rotation to set the COMPASS_CUS_ROLL/PIT/YAW angles for Compass orientation. Later versions provide two general custom rotations which can be used, Custom 1 and Custom 2, with CUST_1_ROLL/PIT/YAW or CUST_2_ROLL/PIT/YAW angles.

Values

Value Meaning 0 None 1 Yaw45 2 Yaw90 3 Yaw135 4 Yaw180 5 Yaw225 6 Yaw270 7 Yaw315 8 Roll180 9 Yaw45Roll180 10 Yaw90Roll180 11 Yaw135Roll180 12 Pitch180 13 Yaw225Roll180 14 Yaw270Roll180 15 Yaw315Roll180 16 Roll90 17 Yaw45Roll90 18 Yaw90Roll90 19 Yaw135Roll90 20 Roll270 21 Yaw45Roll270 22 Yaw90Roll270 23 Yaw135Roll270 24 Pitch90 25 Pitch270 26 Yaw90Pitch180 27 Yaw270Pitch180 28 Pitch90Roll90 29 Pitch90Roll180 30 Pitch90Roll270 31 Pitch180Roll90 32 Pitch180Roll270 33 Pitch270Roll90 34 Pitch270Roll180 35 Pitch270Roll270 36 Yaw90Pitch180Roll90 37 Yaw270Roll90 38 Yaw293Pitch68Roll180 39 Pitch315 40 Pitch315Roll90 42 Roll45 43 Roll315 100 Custom 4.1 and older 101 Custom 1 102 Custom 2

COMPASS_EXTERNAL: Compass is attached via an external cable

Note: This parameter is for advanced users

Configure compass so it is attached externally. This is auto-detected on most boards. Set to 1 if the compass is externally connected. When externally connected the COMPASS_ORIENT option operates independently of the AHRS_ORIENTATION board orientation option. If set to 0 or 1 then auto-detection by bus connection can override the value. If set to 2 then auto-detection will be disabled.

Values
Value Meaning 0 Internal 1 External 2 ForcedExternal

COMPASS_OFS2_X: Compass2 offsets in milligauss on the X axis

Note: This parameter is for advanced users

Offset to be added to compass2's x-axis values to compensate for metal in the frame

Calibration	Increment	Range	Units
1	1	-400 to 400	milligauss

COMPASS_OFS2_Y: Compass2 offsets in milligauss on the Y axis

Note: This parameter is for advanced users

Offset to be added to compass2's y-axis values to compensate for metal in the frame

Calibration	Increment	Range	Units
1	1	-400 to 400	milligauss

COMPASS_OFS2_Z: Compass2 offsets in milligauss on the Z axis

Note: This parameter is for advanced users

Offset to be added to compass2's z-axis values to compensate for metal in the frame

Increment	Range	Units
1	-400 to 400	milligauss

COMPASS_MOT2_X: Motor interference compensation to compass2 for body frame X axis

Note: This parameter is for advanced users

Multiplied by the current throttle and added to compass2's x-axis values to compensate for motor interference (Offset per Amp or at Full Throttle)

Calibration	Increment	Range	Units
1	1	-1000 to 1000	milligauss per ampere

COMPASS_MOT2_Y: Motor interference compensation to compass2 for body frame Y axis

Note: This parameter is for advanced users

Multiplied by the current throttle and added to compass2's y-axis values to compensate for motor interference (Offset per Amp or at Full Throttle)

Calibration	Increment	Range	Units
1	1	-1000 to 1000	milligauss per ampere

COMPASS_MOT2_Z: Motor interference compensation to compass2 for body frame Z axis

Note: This parameter is for advanced users

Multiplied by the current throttle and added to compass2's z-axis values to compensate for motor interference (Offset per Amp or at Full Throttle)

Increment	Range	Units
1	-1000 to 1000	milligauss per ampere

COMPASS_OFS3_X: Compass3 offsets in milligauss on the X axis

Note: This parameter is for advanced users

Offset to be added to compass3's x-axis values to compensate for metal in the frame

Calibration	Increment	Range	Units
1	1	-400 to 400	milligauss

COMPASS_OFS3_Y: Compass3 offsets in milligauss on the Y axis

Note: This parameter is for advanced users

Offset to be added to compass3's y-axis values to compensate for metal in the frame

Calibration	Increment	Range	Units
1	1	-400 to 400	milligauss

COMPASS_OFS3_Z: Compass3 offsets in milligauss on the Z axis

Note: This parameter is for advanced users

Offset to be added to compass3's z-axis values to compensate for metal in the frame

Increment	Range	Units
1	-400 to 400	milligauss

COMPASS_MOT3_X: Motor interference compensation to compass3 for body frame X axis

Note: This parameter is for advanced users

Multiplied by the current throttle and added to compass3's x-axis values to compensate for motor interference (Offset per Amp or at Full Throttle)

Calibration	Increment	Range	Units
1	1	-1000 to 1000	milligauss per ampere

COMPASS_MOT3_Y: Motor interference compensation to compass3 for body frame Y axis

Note: This parameter is for advanced users

Multiplied by the current throttle and added to compass3's y-axis values to compensate for motor interference (Offset per Amp or at Full Throttle)

Calibration	Increment	Range	Units
1	1	-1000 to 1000	milligauss per ampere

COMPASS_MOT3_Z: Motor interference compensation to compass3 for body frame Z axis

Note: This parameter is for advanced users

Multiplied by the current throttle and added to compass3's z-axis values to compensate for motor interference (Offset per Amp or at Full Throttle)

Increment	Range	Units
1	-1000 to 1000	milligauss per ampere

COMPASS_DEV_ID: Compass device id

Note: This parameter is for advanced users

Compass device id. Automatically detected, do not set manually

ReadOnly
True

COMPASS_DEV_ID2: Compass2 device id

Note: This parameter is for advanced users

Second compass's device id. Automatically detected, do not set manually

ReadOnly
True

COMPASS_DEV_ID3: Compass3 device id

Note: This parameter is for advanced users

Third compass's device id. Automatically detected, do not set manually

ReadOnly
True

COMPASS_USE2: Compass2 used for yaw

Note: This parameter is for advanced users

Enable or disable the secondary compass for determining heading.

Values
Value Meaning 0 Disabled 1 Enabled

COMPASS_ORIENT2: Compass2 orientation

Note: This parameter is for advanced users

The orientation of a second external compass relative to the vehicle frame. This value will be ignored unless this compass is set as an external compass. When set correctly in the northern hemisphere, pointing the nose and right side down should increase the MagX and MagY values respectively. Rolling the vehicle upside down should decrease the MagZ value. For southern hemisphere, switch increase and decrease. NOTE: For internal compasses, AHRS_ORIENT is used. The label for each option is specified in the order of rotations for that orientation. Firmware versions 4.2 and prior can use a CUSTOM (100) rotation to set the COMPASS_CUS_ROLL/PIT/YAW angles for Compass orientation. Later versions provide two general custom rotations which can be used, Custom 1 and Custom 2, with CUST_1_ROLL/PIT/YAW or CUST_2_ROLL/PIT/YAW angles.

Values

Value Meaning 0 None 1 Yaw45 2 Yaw90 3 Yaw135 4 Yaw180 5 Yaw225 6 Yaw270 7 Yaw315 8 Roll180 9 Yaw45Roll180 10 Yaw90Roll180 11 Yaw135Roll180 12 Pitch180 13 Yaw225Roll180 14 Yaw270Roll180 15 Yaw315Roll180 16 Roll90 17 Yaw45Roll90 18 Yaw90Roll90 19 Yaw135Roll90 20 Roll270 21 Yaw45Roll270 22 Yaw90Roll270 23 Yaw135Roll270 24 Pitch90 25 Pitch270 26 Yaw90Pitch180 27 Yaw270Pitch180 28 Pitch90Roll90 29 Pitch90Roll180 30 Pitch90Roll270 31 Pitch180Roll90 32 Pitch180Roll270 33 Pitch270Roll90 34 Pitch270Roll180 35 Pitch270Roll270 36 Yaw90Pitch180Roll90 37 Yaw270Roll90 38 Yaw293Pitch68Roll180 39 Pitch315 40 Pitch315Roll90 42 Roll45 43 Roll315 100 Custom 4.1 and older 101 Custom 1 102 Custom 2

COMPASS_EXTERN2: Compass2 is attached via an external cable

Note: This parameter is for advanced users

Configure second compass so it is attached externally. This is auto-detected on most boards. If set to 0 or 1 then auto-detection by bus connection can override the value. If set to 2 then auto-detection will be disabled.

Values
Value Meaning 0 Internal 1 External 2 ForcedExternal

COMPASS_USE3: Compass3 used for yaw

Note: This parameter is for advanced users

Enable or disable the tertiary compass for determining heading.

Values
Value Meaning 0 Disabled 1 Enabled

COMPASS_ORIENT3: Compass3 orientation

Note: This parameter is for advanced users

The orientation of a third external compass relative to the vehicle frame. This value will be ignored unless this compass is set as an external compass. When set correctly in the northern hemisphere, pointing the nose and right side down should increase the MagX and MagY values respectively. Rolling the vehicle upside down should decrease the MagZ value. For southern hemisphere, switch increase and decrease. NOTE: For internal compasses, AHRS_ORIENT is used. The label for each option is specified in the order of rotations for that orientation. Firmware versions 4.2 and prior can use a CUSTOM (100) rotation to set the COMPASS_CUS_ROLL/PIT/YAW angles for Compass orientation. Later versions provide two general custom rotations which can be used, Custom 1 and Custom 2, with CUST_1_ROLL/PIT/YAW or CUST_2_ROLL/PIT/YAW angles.

Values

Value Meaning 0 None 1 Yaw45 2 Yaw90 3 Yaw135 4 Yaw180 5 Yaw225 6 Yaw270 7 Yaw315 8 Roll180 9 Yaw45Roll180 10 Yaw90Roll180 11 Yaw135Roll180 12 Pitch180 13 Yaw225Roll180 14 Yaw270Roll180 15 Yaw315Roll180 16 Roll90 17 Yaw45Roll90 18 Yaw90Roll90 19 Yaw135Roll90 20 Roll270 21 Yaw45Roll270 22 Yaw90Roll270 23 Yaw135Roll270 24 Pitch90 25 Pitch270 26 Yaw90Pitch180 27 Yaw270Pitch180 28 Pitch90Roll90 29 Pitch90Roll180 30 Pitch90Roll270 31 Pitch180Roll90 32 Pitch180Roll270 33 Pitch270Roll90 34 Pitch270Roll180 35 Pitch270Roll270 36 Yaw90Pitch180Roll90 37 Yaw270Roll90 38 Yaw293Pitch68Roll180 39 Pitch315 40 Pitch315Roll90 42 Roll45 43 Roll315 100 Custom 4.1 and older 101 Custom 1 102 Custom 2

COMPASS_EXTERN3: Compass3 is attached via an external cable

Note: This parameter is for advanced users

Configure third compass so it is attached externally. This is auto-detected on most boards. If set to 0 or 1 then auto-detection by bus connection can override the value. If set to 2 then auto-detection will be disabled.

Values
Value Meaning 0 Internal 1 External 2 ForcedExternal

COMPASS_DIA_X: Compass soft-iron diagonal X component

Note: This parameter is for advanced users

DIA_X in the compass soft-iron calibration matrix: [[DIA_X, ODI_X, ODI_Y], [ODI_X, DIA_Y, ODI_Z], [ODI_Y, ODI_Z, DIA_Z]]

Calibration
1

COMPASS_DIA_Y: Compass soft-iron diagonal Y component

Note: This parameter is for advanced users

DIA_Y in the compass soft-iron calibration matrix: [[DIA_X, ODI_X, ODI_Y], [ODI_X, DIA_Y, ODI_Z], [ODI_Y, ODI_Z, DIA_Z]]

Calibration
1

COMPASS_DIA_Z: Compass soft-iron diagonal Z component

Note: This parameter is for advanced users

DIA_Z in the compass soft-iron calibration matrix: [[DIA_X, ODI_X, ODI_Y], [ODI_X, DIA_Y, ODI_Z], [ODI_Y, ODI_Z, DIA_Z]]

COMPASS_ODI_X: Compass soft-iron off-diagonal X component

Note: This parameter is for advanced users

ODI_X in the compass soft-iron calibration matrix: [[DIA_X, ODI_X, ODI_Y], [ODI_X, DIA_Y, ODI_Z], [ODI_Y, ODI_Z, DIA_Z]]

Calibration
1

COMPASS_ODI_Y: Compass soft-iron off-diagonal Y component

Note: This parameter is for advanced users

ODI_Y in the compass soft-iron calibration matrix: [[DIA_X, ODI_X, ODI_Y], [ODI_X, DIA_Y, ODI_Z], [ODI_Y, ODI_Z, DIA_Z]]

Calibration
1

COMPASS_ODI_Z: Compass soft-iron off-diagonal Z component

Note: This parameter is for advanced users

ODI_Z in the compass soft-iron calibration matrix: [[DIA_X, ODI_X, ODI_Y], [ODI_X, DIA_Y, ODI_Z], [ODI_Y, ODI_Z, DIA_Z]]

COMPASS_DIA2_X: Compass2 soft-iron diagonal X component

Note: This parameter is for advanced users

DIA_X in the compass2 soft-iron calibration matrix: [[DIA_X, ODI_X, ODI_Y], [ODI_X, DIA_Y, ODI_Z], [ODI_Y, ODI_Z, DIA_Z]]

Calibration
1

COMPASS_DIA2_Y: Compass2 soft-iron diagonal Y component

Note: This parameter is for advanced users

DIA_Y in the compass2 soft-iron calibration matrix: [[DIA_X, ODI_X, ODI_Y], [ODI_X, DIA_Y, ODI_Z], [ODI_Y, ODI_Z, DIA_Z]]

Calibration
1

COMPASS_DIA2_Z: Compass2 soft-iron diagonal Z component

Note: This parameter is for advanced users

DIA_Z in the compass2 soft-iron calibration matrix: [[DIA_X, ODI_X, ODI_Y], [ODI_X, DIA_Y, ODI_Z], [ODI_Y, ODI_Z, DIA_Z]]

COMPASS_ODI2_X: Compass2 soft-iron off-diagonal X component

Note: This parameter is for advanced users

ODI_X in the compass2 soft-iron calibration matrix: [[DIA_X, ODI_X, ODI_Y], [ODI_X, DIA_Y, ODI_Z], [ODI_Y, ODI_Z, DIA_Z]]

Calibration
1

COMPASS_ODI2_Y: Compass2 soft-iron off-diagonal Y component

Note: This parameter is for advanced users

ODI_Y in the compass2 soft-iron calibration matrix: [[DIA_X, ODI_X, ODI_Y], [ODI_X, DIA_Y, ODI_Z], [ODI_Y, ODI_Z, DIA_Z]]

Calibration
1

COMPASS_ODI2_Z: Compass2 soft-iron off-diagonal Z component

Note: This parameter is for advanced users

ODI_Z in the compass2 soft-iron calibration matrix: [[DIA_X, ODI_X, ODI_Y], [ODI_X, DIA_Y, ODI_Z], [ODI_Y, ODI_Z, DIA_Z]]

COMPASS_DIA3_X: Compass3 soft-iron diagonal X component

Note: This parameter is for advanced users

DIA_X in the compass3 soft-iron calibration matrix: [[DIA_X, ODI_X, ODI_Y], [ODI_X, DIA_Y, ODI_Z], [ODI_Y, ODI_Z, DIA_Z]]

Calibration
1

COMPASS_DIA3_Y: Compass3 soft-iron diagonal Y component

Note: This parameter is for advanced users

DIA_Y in the compass3 soft-iron calibration matrix: [[DIA_X, ODI_X, ODI_Y], [ODI_X, DIA_Y, ODI_Z], [ODI_Y, ODI_Z, DIA_Z]]

Calibration
1

COMPASS_DIA3_Z: Compass3 soft-iron diagonal Z component

Note: This parameter is for advanced users

DIA_Z in the compass3 soft-iron calibration matrix: [[DIA_X, ODI_X, ODI_Y], [ODI_X, DIA_Y, ODI_Z], [ODI_Y, ODI_Z, DIA_Z]]

COMPASS_ODI3_X: Compass3 soft-iron off-diagonal X component

Note: This parameter is for advanced users

ODI_X in the compass3 soft-iron calibration matrix: [[DIA_X, ODI_X, ODI_Y], [ODI_X, DIA_Y, ODI_Z], [ODI_Y, ODI_Z, DIA_Z]]

Calibration
1

COMPASS_ODI3_Y: Compass3 soft-iron off-diagonal Y component

Note: This parameter is for advanced users

ODI_Y in the compass3 soft-iron calibration matrix: [[DIA_X, ODI_X, ODI_Y], [ODI_X, DIA_Y, ODI_Z], [ODI_Y, ODI_Z, DIA_Z]]

Calibration
1

COMPASS_ODI3_Z: Compass3 soft-iron off-diagonal Z component

Note: This parameter is for advanced users

ODI_Z in the compass3 soft-iron calibration matrix: [[DIA_X, ODI_X, ODI_Y], [ODI_X, DIA_Y, ODI_Z], [ODI_Y, ODI_Z, DIA_Z]]

COMPASS_CAL_FIT: Compass calibration fitness

Note: This parameter is for advanced users

This controls the fitness level required for a successful compass calibration. A lower value makes for a stricter fit (less likely to pass). This is the value used for the primary magnetometer. Other magnetometers get double the value.

Increment	Range	Values
0.1	4 to 32	Value Meaning 4 Very Strict 8 Strict 16 Default 32 Relaxed

COMPASS_OFFS_MAX: Compass maximum offset

Note: This parameter is for advanced users

This sets the maximum allowed compass offset in calibration and arming checks

Increment	Range
1	500 to 3000

COMPASS_TYPEMASK: Compass disable driver type mask

Note: This parameter is for advanced users

This is a bitmask of driver types to disable. If a driver type is set in this mask then that driver will not try to find a sensor at startup

Bitmask
Bit Meaning 0 HMC5883 1 LSM303D 2 AK8963 3 BMM150 4 LSM9DS1 5 LIS3MDL 6 AK09916 7 IST8310 8 ICM20948 9 MMC3416 11 DroneCAN 12 QMC5883 14 MAG3110 15 IST8308 16 RM3100 17 MSP 18 ExternalAHRS

COMPASS_FLTR_RNG: Range in which sample is accepted

This sets the range around the average value that new samples must be within to be accepted. This can help reduce the impact of noise on sensors that are on long I2C cables. The value is a percentage from the average value. A value of zero disables this filter.

Increment	Range	Units
1	0 to 100	percent

COMPASS_AUTO_ROT: Automatically check orientation

When enabled this will automatically check the orientation of compasses on successful completion of compass calibration. If set to 2 then external compasses will have their orientation automatically corrected.

Values
Value Meaning 0 Disabled 1 CheckOnly 2 CheckAndFix 3 use same tolerance to auto rotate 45 deg rotations

COMPASS_PRIO1_ID: Compass device id with 1st order priority

Note: This parameter is for advanced users

Note: Reboot required after change

Compass device id with 1st order priority, set automatically if 0. Reboot required after change.

COMPASS_PRIO2_ID: Compass device id with 2nd order priority

Note: This parameter is for advanced users

Note: Reboot required after change

Compass device id with 2nd order priority, set automatically if 0. Reboot required after change.

COMPASS_PRIO3_ID: Compass device id with 3rd order priority

Note: This parameter is for advanced users

Note: Reboot required after change

Compass device id with 3rd order priority, set automatically if 0. Reboot required after change.

COMPASS_ENABLE: Enable Compass

Note: Reboot required after change

Setting this to Enabled(1) will enable the compass. Setting this to Disabled(0) will disable the compass. Note that this is separate from COMPASS_USE. This will enable the low level senor, and will enable logging of magnetometer data. To use the compass for navigation you must also set COMPASS_USE to 1.

Values
Value Meaning 0 Disabled 1 Enabled

COMPASS_SCALE: Compass1 scale factor

Scaling factor for first compass to compensate for sensor scaling errors. If this is 0 then no scaling is done

Range
0 to 1.3

COMPASS_SCALE2: Compass2 scale factor

Scaling factor for 2nd compass to compensate for sensor scaling errors. If this is 0 then no scaling is done

Range
0 to 1.3

COMPASS_SCALE3: Compass3 scale factor

Scaling factor for 3rd compass to compensate for sensor scaling errors. If this is 0 then no scaling is done

Range
0 to 1.3

COMPASS_OPTIONS: Compass options

Note: This parameter is for advanced users

This sets options to change the behaviour of the compass

Bitmask
Bit Meaning 0 CalRequireGPS

COMPASS_DEV_ID4: Compass4 device id

Note: This parameter is for advanced users

Extra 4th compass's device id. Automatically detected, do not set manually

ReadOnly
True

COMPASS_DEV_ID5: Compass5 device id

Note: This parameter is for advanced users

Extra 5th compass's device id. Automatically detected, do not set manually

ReadOnly
True

COMPASS_DEV_ID6: Compass6 device id

Note: This parameter is for advanced users

Extra 6th compass's device id. Automatically detected, do not set manually

ReadOnly
True

COMPASS_DEV_ID7: Compass7 device id

Note: This parameter is for advanced users

Extra 7th compass's device id. Automatically detected, do not set manually

ReadOnly
True

COMPASS_DEV_ID8: Compass8 device id

Note: This parameter is for advanced users

Extra 8th compass's device id. Automatically detected, do not set manually

ReadOnly
True

COMPASS_CUS_ROLL: Custom orientation roll offset

Note: This parameter is for advanced users

Note: Reboot required after change

Compass mounting position roll offset. Positive values = roll right, negative values = roll left. This parameter is only used when COMPASS_ORIENT/2/3 is set to CUSTOM.

Increment	Range	Units
1	-180 to 180	degrees

COMPASS_CUS_PIT: Custom orientation pitch offset

Note: This parameter is for advanced users

Note: Reboot required after change

Compass mounting position pitch offset. Positive values = pitch up, negative values = pitch down. This parameter is only used when COMPASS_ORIENT/2/3 is set to CUSTOM.

Increment	Range	Units
1	-180 to 180	degrees

COMPASS_CUS_YAW: Custom orientation yaw offset

Note: This parameter is for advanced users

Note: Reboot required after change

Compass mounting position yaw offset. Positive values = yaw right, negative values = yaw left. This parameter is only used when COMPASS_ORIENT/2/3 is set to CUSTOM.

Increment	Range	Units
1	-180 to 180	degrees

COMPASS_PMOT Parameters

COMPASS_PMOT_EN: per-motor compass correction enable

Note: This parameter is for advanced users

This enables per-motor compass corrections

Values
Value Meaning 0 Disabled 1 Enabled

COMPASS_PMOT_EXP: per-motor exponential correction

Note: This parameter is for advanced users

This is the exponential correction for the power output of the motor for per-motor compass correction

Increment	Range
0.01	0 to 2

COMPASS_PMOT1_X: Compass per-motor1 X

Note: This parameter is for advanced users

Compensation for X axis of motor1

COMPASS_PMOT1_Y: Compass per-motor1 Y

Note: This parameter is for advanced users

Compensation for Y axis of motor1

COMPASS_PMOT1_Z: Compass per-motor1 Z

Note: This parameter is for advanced users

Compensation for Z axis of motor1

COMPASS_PMOT2_X: Compass per-motor2 X

Note: This parameter is for advanced users

Compensation for X axis of motor2

COMPASS_PMOT2_Y: Compass per-motor2 Y

Note: This parameter is for advanced users

Compensation for Y axis of motor2

COMPASS_PMOT2_Z: Compass per-motor2 Z

Note: This parameter is for advanced users

Compensation for Z axis of motor2

COMPASS_PMOT3_X: Compass per-motor3 X

Note: This parameter is for advanced users

Compensation for X axis of motor3

COMPASS_PMOT3_Y: Compass per-motor3 Y

Note: This parameter is for advanced users

Compensation for Y axis of motor3

COMPASS_PMOT3_Z: Compass per-motor3 Z

Note: This parameter is for advanced users

Compensation for Z axis of motor3

COMPASS_PMOT4_X: Compass per-motor4 X

Note: This parameter is for advanced users

Compensation for X axis of motor4

COMPASS_PMOT4_Y: Compass per-motor4 Y

Note: This parameter is for advanced users

Compensation for Y axis of motor4

COMPASS_PMOT4_Z: Compass per-motor4 Z

Note: This parameter is for advanced users

Compensation for Z axis of motor4

CUST_ROT Parameters

CUST_ROT_ENABLE: Enable Custom rotations

Note: Reboot required after change

This enables custom rotations

Values
Value Meaning 0 Disable 1 Enable

CUST_ROT1_ Parameters

CUST_ROT1_ROLL: Custom roll

Note: Reboot required after change

Custom euler roll, euler 321 (yaw, pitch, roll) ordering

Units
degrees

CUST_ROT1_PITCH: Custom pitch

Note: Reboot required after change

Custom euler pitch, euler 321 (yaw, pitch, roll) ordering

Units
degrees

CUST_ROT1_YAW: Custom yaw

Note: Reboot required after change

Custom euler yaw, euler 321 (yaw, pitch, roll) ordering

Units
degrees

CUST_ROT2_ Parameters

CUST_ROT2_ROLL: Custom roll

Note: Reboot required after change

Custom euler roll, euler 321 (yaw, pitch, roll) ordering

Units
degrees

CUST_ROT2_PITCH: Custom pitch

Note: Reboot required after change

Custom euler pitch, euler 321 (yaw, pitch, roll) ordering

Units
degrees

CUST_ROT2_YAW: Custom yaw

Note: Reboot required after change

Custom euler yaw, euler 321 (yaw, pitch, roll) ordering

Units
degrees

DID_ Parameters

DID_ENABLE: Enable ODID subsystem

Enable ODID subsystem

Values
Value Meaning 0 Disabled 1 Enabled

DID_MAVPORT: MAVLink serial port

Serial port number to send OpenDroneID MAVLink messages to. Can be -1 if using DroneCAN.

Values
Value Meaning -1 Disabled 0 Serial0 1 Serial1 2 Serial2 3 Serial3 4 Serial4 5 Serial5 6 Serial6

DID_CANDRIVER: DroneCAN driver number

DroneCAN driver index, 0 to disable DroneCAN

Values
Value Meaning 0 Disabled 1 Driver1 2 Driver2

DID_OPTIONS: OpenDroneID options

Options for OpenDroneID subsystem. Bit 0 means to enforce arming checks

Bitmask
Bit Meaning 0 EnforceArming

DID_BARO_ACC: Barometer vertical accuraacy

Note: This parameter is for advanced users

Barometer Vertical Accuracy when installed in the vehicle. Note this is dependent upon installation conditions and thus disabled by default

Units
meters

EAHRS Parameters

EAHRS_TYPE: AHRS type

Type of AHRS device

Values
Value Meaning 0 None 1 VectorNav 2 LORD

EAHRS_RATE: AHRS data rate

Requested rate for AHRS device

Units
hertz

EFI Parameters

EFI_TYPE: EFI communication type

Note: This parameter is for advanced users

Note: Reboot required after change

What method of communication is used for EFI #1

Values
Value Meaning 0 None 1 Serial-MS 2 NWPMU 3 Serial-Lutan 5 DroneCAN 6 Currawong-ECU 7 Scripting

EFI_COEF1: EFI Calibration Coefficient 1

Note: This parameter is for advanced users

Used to calibrate fuel flow for MS protocol (Slope). This should be calculated from a log at constant fuel usage rate. Plot (ECYL[0].InjT*EFI.Rpm)/600.0 to get the duty_cycle. Measure actual fuel usage in cm^3/min, and set EFI_COEF1 = fuel_usage_cm3permin / duty_cycle

Range
0 to 1

EFI_COEF2: EFI Calibration Coefficient 2

Note: This parameter is for advanced users

Used to calibrate fuel flow for MS protocol (Offset). This can be used to correct for a non-zero offset in the fuel consumption calculation of EFI_COEF1

Range
0 to 10

EFI_FUEL_DENS: ECU Fuel Density

Note: This parameter is for advanced users

Used to calculate fuel consumption

Range	Units
0 to 10000	kilograms per cubic meter

ESC_TLM Parameters

ESC_TLM_MAV_OFS: ESC Telemetry mavlink offset

Offset to apply to ESC numbers when reporting as ESC_TELEMETRY packets over MAVLink. This allows high numbered motors to be displayed as low numbered ESCs for convenience on GCS displays. A value of 4 would send ESC on output 5 as ESC number 1 in ESC_TELEMETRY packets

Increment	Range
1	0 to 31

FENCE_ Parameters

FENCE_ENABLE: Fence enable/disable

Allows you to enable (1) or disable (0) the fence functionality

Values
Value Meaning 0 Disabled 1 Enabled

FENCE_ACTION: Fence Action

What action should be taken when fence is breached

Values
Value Meaning 0 Report Only 1 RTL or Land

FENCE_RADIUS: Circular Fence Radius

Circle fence radius which when breached will cause an RTL

Range	Units
30 to 10000	meters

FENCE_MARGIN: Fence Margin

Distance that autopilot's should maintain from the fence to avoid a breach

Range	Units
1 to 10	meters

FENCE_TOTAL: Fence polygon point total

Number of polygon points saved in eeprom (do not update manually)

Range
1 to 20

FFT_ Parameters

FFT_ENABLE: Enable

Note: This parameter is for advanced users

Note: Reboot required after change

Enable Gyro FFT analyser

Values
Value Meaning 0 Disabled 1 Enabled

FFT_MINHZ: Minimum Frequency

Note: This parameter is for advanced users

Lower bound of FFT frequency detection in Hz. On larger vehicles the minimum motor frequency is likely to be significantly lower than for smaller vehicles.

Range	Units
20 to 400	hertz

FFT_MAXHZ: Maximum Frequency

Note: This parameter is for advanced users

Upper bound of FFT frequency detection in Hz. On smaller vehicles the maximum motor frequency is likely to be significantly higher than for larger vehicles.

Range	Units
20 to 495	hertz

FFT_SAMPLE_MODE: Sample Mode

Note: This parameter is for advanced users

Note: Reboot required after change

Sampling mode (and therefore rate). 0: Gyro rate sampling, 1: Fast loop rate sampling, 2: Fast loop rate / 2 sampling, 3: Fast loop rate / 3 sampling. Takes effect on reboot.

Range
0 to 4

FFT_WINDOW_SIZE: FFT window size

Note: This parameter is for advanced users

Note: Reboot required after change

Size of window to be used in FFT calculations. Takes effect on reboot. Must be a power of 2 and between 32 and 512. Larger windows give greater frequency resolution but poorer time resolution, consume more CPU time and may not be appropriate for all vehicles. Time and frequency resolution are given by the sample-rate / window-size. Windows of 256 are only really recommended for F7 class boards, windows of 512 or more H7 class.

Range
32 to 1024

FFT_WINDOW_OLAP: FFT window overlap

Note: This parameter is for advanced users

Note: Reboot required after change

Percentage of window to be overlapped before another frame is process. Takes effect on reboot. A good default is 50% overlap. Higher overlap results in more processed frames but not necessarily more temporal resolution. Lower overlap results in lost information at the frame edges.

Range
0 to 0.9

FFT_FREQ_HOVER: FFT learned hover frequency

Note: This parameter is for advanced users

The learned hover noise frequency

Range
0 to 250

FFT_THR_REF: FFT learned thrust reference

Note: This parameter is for advanced users

FFT learned thrust reference for the hover frequency and FFT minimum frequency.

Range
0.01 to 0.9

FFT_SNR_REF: FFT SNR reference threshold

Note: This parameter is for advanced users

FFT SNR reference threshold in dB at which a signal is determined to be present.

Range
0.0 to 100.0

FFT_ATT_REF: FFT attenuation for bandwidth calculation

Note: This parameter is for advanced users

FFT attenuation level in dB for bandwidth calculation and peak detection. The bandwidth is calculated by comparing peak power output with the attenuated version. The default of 15 has shown to be a good compromise in both simulations and real flight.

Range
0 to 100

FFT_BW_HOVER: FFT learned bandwidth at hover

Note: This parameter is for advanced users

FFT learned bandwidth at hover for the attenuation frequencies.

Range
0 to 200

FFT_HMNC_FIT: FFT harmonic fit frequency threshold

Note: This parameter is for advanced users

Note: Reboot required after change

FFT harmonic fit frequency threshold percentage at which a signal of the appropriate frequency is determined to be the harmonic of another. Signals that have a harmonic relationship that varies at most by this percentage are considered harmonics of each other for the purpose of selecting the harmonic notch frequency. If a match is found then the lower frequency harmonic is always used as the basis for the dynamic harmonic notch. A value of zero completely disables harmonic matching.

Range
0 to 100

FFT_HMNC_PEAK: FFT harmonic peak target

Note: This parameter is for advanced users

The FFT harmonic peak target that should be returned by FTN1.PkAvg. The resulting value will be used by the harmonic notch if configured to track the FFT frequency. By default the appropriate peak is auto-detected based on the harmonic fit between peaks and the energy-weighted average frequency on roll on pitch is used. Setting this to 1 will always target the highest energy peak. Setting this to 2 will target the highest energy peak that is lower in frequency than the highest energy peak. Setting this to 3 will target the highest energy peak that is higher in frequency than the highest energy peak. Setting this to 4 will target the highest energy peak on the roll axis only and only the roll frequency will be used (some vehicles have a much more pronounced peak on roll). Setting this to 5 will target the highest energy peak on the pitch axis only and only the pitch frequency will be used (some vehicles have a much more pronounced peak on roll).

Values
Value Meaning 0 Auto 1 Center Frequency 2 Lower-Shoulder Frequency 3 Upper-Shoulder Frequency 4 Roll-Axis 5 Pitch-Axis

FFT_NUM_FRAMES: FFT output frames to retain and average

Note: This parameter is for advanced users

Note: Reboot required after change

Number of output frequency frames to retain and average in order to calculate final frequencies. Averaging output frames can drastically reduce noise and jitter at the cost of latency as long as the input is stable. The default is to perform no averaging. For rapidly changing frequencies (e.g. smaller aircraft) fewer frames should be averaged.

Range
0 to 8

FRSKY_ Parameters

FRSKY_UPLINK_ID: Uplink sensor id

Note: This parameter is for advanced users

Change the uplink sensor id (SPort only)

Values
Value Meaning -1 Disable 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26

FRSKY_DNLINK1_ID: First downlink sensor id

Note: This parameter is for advanced users

Change the first extra downlink sensor id (SPort only)

Values
Value Meaning -1 Disable 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26

FRSKY_DNLINK2_ID: Second downlink sensor id

Note: This parameter is for advanced users

Change the second extra downlink sensor id (SPort only)

Values
Value Meaning -1 Disable 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26

FRSKY_DNLINK_ID: Default downlink sensor id

Note: This parameter is for advanced users

Change the default downlink sensor id (SPort only)

Values
Value Meaning -1 Disable 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26 27 27

FRSKY_OPTIONS: FRSky Telemetry Options

A bitmask to set some FRSky Telemetry specific options

Bitmask
Bit Meaning 0 EnableAirspeedAndGroundspeed

GEN_ Parameters

GEN_TYPE: Generator type

Note: Reboot required after change

Generator type

Values
Value Meaning 0 Disabled 1 IE 650w 800w Fuel Cell 2 IE 2.4kW Fuel Cell 3 Richenpower

GEN_OPTIONS: Generator Options

Bitmask of options for generators

Bitmask
Bit Meaning 0 Supress Maintenance-Required Warnings

GPS Parameters

GPS_TYPE: 1st GPS type

Note: This parameter is for advanced users

Note: Reboot required after change

GPS type of 1st GPS

Values
Value Meaning 0 None 1 AUTO 2 uBlox 5 NMEA 6 SiRF 7 HIL 8 SwiftNav 9 DroneCAN 10 SBF 11 GSOF 13 ERB 14 MAV 15 NOVA 16 HemisphereNMEA 17 uBlox-MovingBaseline-Base 18 uBlox-MovingBaseline-Rover 19 MSP 20 AllyStar 21 ExternalAHRS 22 DroneCAN-MovingBaseline-Base 23 DroneCAN-MovingBaseline-Rover

GPS_TYPE2: 2nd GPS type

Note: This parameter is for advanced users

Note: Reboot required after change

GPS type of 2nd GPS

Values
Value Meaning 0 None 1 AUTO 2 uBlox 5 NMEA 6 SiRF 7 HIL 8 SwiftNav 9 DroneCAN 10 SBF 11 GSOF 13 ERB 14 MAV 15 NOVA 16 HemisphereNMEA 17 uBlox-MovingBaseline-Base 18 uBlox-MovingBaseline-Rover 19 MSP 20 AllyStar 21 ExternalAHRS 22 DroneCAN-MovingBaseline-Base 23 DroneCAN-MovingBaseline-Rover

GPS_NAVFILTER: Navigation filter setting

Note: This parameter is for advanced users

Navigation filter engine setting

Values
Value Meaning 0 Portable 2 Stationary 3 Pedestrian 4 Automotive 5 Sea 6 Airborne1G 7 Airborne2G 8 Airborne4G

GPS_AUTO_SWITCH: Automatic Switchover Setting

Note: This parameter is for advanced users

Automatic switchover to GPS reporting best lock, 1:UseBest selects the GPS with highest status, if both are equal the GPS with highest satellite count is used 4:Use primary if 3D fix or better, will revert to 'UseBest' behaviour if 3D fix is lost on primary

Values
Value Meaning 0 Use primary 1 UseBest 2 Blend 4 Use primary if 3D fix or better

GPS_MIN_DGPS: Minimum Lock Type Accepted for DGPS

Note: This parameter is for advanced users

Note: Reboot required after change

Sets the minimum type of differential GPS corrections required before allowing to switch into DGPS mode.

Values
Value Meaning 0 Any 50 FloatRTK 100 IntegerRTK

GPS_SBAS_MODE: SBAS Mode

Note: This parameter is for advanced users

This sets the SBAS (satellite based augmentation system) mode if available on this GPS. If set to 2 then the SBAS mode is not changed in the GPS. Otherwise the GPS will be reconfigured to enable/disable SBAS. Disabling SBAS may be worthwhile in some parts of the world where an SBAS signal is available but the baseline is too long to be useful.

Values
Value Meaning 0 Disabled 1 Enabled 2 NoChange

GPS_MIN_ELEV: Minimum elevation

Note: This parameter is for advanced users

This sets the minimum elevation of satellites above the horizon for them to be used for navigation. Setting this to -100 leaves the minimum elevation set to the GPS modules default.

Range	Units
-100 to 90	degrees

GPS_INJECT_TO: Destination for GPS_INJECT_DATA MAVLink packets

Note: This parameter is for advanced users

The GGS can send raw serial packets to inject data to multiple GPSes.

Values
Value Meaning 0 send to first GPS 1 send to 2nd GPS 127 send to all

GPS_SBP_LOGMASK: Swift Binary Protocol Logging Mask

Note: This parameter is for advanced users

Masked with the SBP msg_type field to determine whether SBR1/SBR2 data is logged

Values
Value Meaning 0 None (0x0000) -1 All (0xFFFF) -256 External only (0xFF00)

GPS_RAW_DATA: Raw data logging

Note: This parameter is for advanced users

Note: Reboot required after change

Handles logging raw data; on uBlox chips that support raw data this will log RXM messages into logger; on Septentrio this will log on the equipment's SD card and when set to 2, the autopilot will try to stop logging after disarming and restart after arming

Values
Value Meaning 0 Ignore 1 Always log 2 Stop logging when disarmed (SBF only) 5 Only log every five samples (uBlox only)

GPS_GNSS_MODE: GNSS system configuration

Note: This parameter is for advanced users

Bitmask for what GNSS system to use on the first GPS (all unchecked or zero to leave GPS as configured)

Bitmask
Bit Meaning 0 GPS 1 SBAS 2 Galileo 3 Beidou 4 IMES 5 QZSS 6 GLONASS

GPS_SAVE_CFG: Save GPS configuration

Note: This parameter is for advanced users

Determines whether the configuration for this GPS should be written to non-volatile memory on the GPS. Currently working for UBlox 6 series and above.

Values
Value Meaning 0 Do not save config 1 Save config 2 Save only when needed

GPS_GNSS_MODE2: GNSS system configuration

Note: This parameter is for advanced users

Bitmask for what GNSS system to use on the second GPS (all unchecked or zero to leave GPS as configured)

Bitmask
Bit Meaning 0 GPS 1 SBAS 2 Galileo 3 Beidou 4 IMES 5 QZSS 6 GLONASS

GPS_AUTO_CONFIG: Automatic GPS configuration

Note: This parameter is for advanced users

Controls if the autopilot should automatically configure the GPS based on the parameters and default settings

Values
Value Meaning 0 Disables automatic configuration 1 Enable automatic configuration for Serial GPSes only 2 Enable automatic configuration for DroneCAN as well

GPS_RATE_MS: GPS update rate in milliseconds

Note: This parameter is for advanced users

Controls how often the GPS should provide a position update. Lowering below 5Hz(default) is not allowed. Raising the rate above 5Hz usually provides little benefit and for some GPS (eg Ublox M9N) can severely impact performance.

Range	Units	Values
50 to 200	milliseconds	Value Meaning 100 10Hz 125 8Hz 200 5Hz

GPS_RATE_MS2: GPS 2 update rate in milliseconds

Note: This parameter is for advanced users

Controls how often the GPS should provide a position update. Lowering below 5Hz(default) is not allowed. Raising the rate above 5Hz usually provides little benefit and for some GPS (eg Ublox M9N) can severely impact performance.

Range	Units	Values
50 to 200	milliseconds	Value Meaning 100 10Hz 125 8Hz 200 5Hz

GPS_POS1_X: Antenna X position offset

Note: This parameter is for advanced users

X position of the first GPS antenna in body frame. Positive X is forward of the origin. Use antenna phase centroid location if provided by the manufacturer.

Increment	Range	Units
0.01	-5 to 5	meters

GPS_POS1_Y: Antenna Y position offset

Note: This parameter is for advanced users

Y position of the first GPS antenna in body frame. Positive Y is to the right of the origin. Use antenna phase centroid location if provided by the manufacturer.

Increment	Range	Units
0.01	-5 to 5	meters

GPS_POS1_Z: Antenna Z position offset

Note: This parameter is for advanced users

Z position of the first GPS antenna in body frame. Positive Z is down from the origin. Use antenna phase centroid location if provided by the manufacturer.

Increment	Range	Units
0.01	-5 to 5	meters

GPS_POS2_X: Antenna X position offset

Note: This parameter is for advanced users

X position of the second GPS antenna in body frame. Positive X is forward of the origin. Use antenna phase centroid location if provided by the manufacturer.

Increment	Range	Units
0.01	-5 to 5	meters

GPS_POS2_Y: Antenna Y position offset

Note: This parameter is for advanced users

Y position of the second GPS antenna in body frame. Positive Y is to the right of the origin. Use antenna phase centroid location if provided by the manufacturer.

Increment	Range	Units
0.01	-5 to 5	meters

GPS_POS2_Z: Antenna Z position offset

Note: This parameter is for advanced users

Z position of the second GPS antenna in body frame. Positive Z is down from the origin. Use antenna phase centroid location if provided by the manufacturer.

Increment	Range	Units
0.01	-5 to 5	meters

GPS_DELAY_MS: GPS delay in milliseconds

Note: This parameter is for advanced users

Note: Reboot required after change

Controls the amount of GPS measurement delay that the autopilot compensates for. Set to zero to use the default delay for the detected GPS type.

Range	Units
0 to 250	milliseconds

GPS_DELAY_MS2: GPS 2 delay in milliseconds

Note: This parameter is for advanced users

Note: Reboot required after change

Controls the amount of GPS measurement delay that the autopilot compensates for. Set to zero to use the default delay for the detected GPS type.

Range	Units
0 to 250	milliseconds

GPS_BLEND_MASK: Multi GPS Blending Mask

Note: This parameter is for advanced users

Determines which of the accuracy measures Horizontal position, Vertical Position and Speed are used to calculate the weighting on each GPS receiver when soft switching has been selected by setting GPS_AUTO_SWITCH to 2(Blend)

Bitmask
Bit Meaning 0 Horiz Pos 1 Vert Pos 2 Speed

GPS_BLEND_TC: Blending time constant

Note: This parameter is for advanced users

Controls the slowest time constant applied to the calculation of GPS position and height offsets used to adjust different GPS receivers for steady state position differences.

Range	Units
5.0 to 30.0	seconds

GPS_DRV_OPTIONS: driver options

Note: This parameter is for advanced users

Additional backend specific options

Bitmask
Bit Meaning 0 Use UART2 for moving baseline on ublox 1 Use base station for GPS yaw on SBF 2 Use baudrate 115200 3 Use dedicated CAN port b/w GPSes for moving baseline 4 Use ellipsoid height instead of AMSL for uBlox driver

GPS_COM_PORT: GPS physical COM port

Note: This parameter is for advanced users

Note: Reboot required after change

The physical COM port on the connected device, currently only applies to SBF GPS

Increment	Range
1	0 to 10

GPS_COM_PORT2: GPS physical COM port

Note: This parameter is for advanced users

Note: Reboot required after change

The physical COM port on the connected device, currently only applies to SBF GPS

Increment	Range
1	0 to 10

GPS_PRIMARY: Primary GPS

Note: This parameter is for advanced users

This GPS will be used when GPS_AUTO_SWITCH is 0 and used preferentially with GPS_AUTO_SWITCH = 4.

Increment	Values
1	Value Meaning 0 FirstGPS 1 SecondGPS

GPS_CAN_NODEID1: GPS Node ID 1

Note: This parameter is for advanced users

GPS Node id for first-discovered GPS.

ReadOnly
True

GPS_CAN_NODEID2: GPS Node ID 2

Note: This parameter is for advanced users

GPS Node id for second-discovered GPS.

ReadOnly
True

GPS1_CAN_OVRIDE: First DroneCAN GPS NODE ID

Note: This parameter is for advanced users

GPS Node id for first GPS. If 0 the gps will be automatically selected on a first-come-first-GPS basis.

GPS2_CAN_OVRIDE: Second DroneCAN GPS NODE ID

Note: This parameter is for advanced users

GPS Node id for second GPS. If 0 the gps will be automatically selected on a second-come-second-GPS basis.

GPS_MB1_ Parameters

GPS_MB1_TYPE: Moving base type

Note: This parameter is for advanced users

Note: Reboot required after change

Controls the type of moving base used if using moving base.

Values
Value Meaning 0 Relative to alternate GPS instance 1 RelativeToCustomBase

GPS_MB1_OFS_X: Base antenna X position offset

Note: This parameter is for advanced users

X position of the base GPS antenna in body frame. Positive X is forward of the origin. Use antenna phase centroid location if provided by the manufacturer.

Increment	Range	Units
0.01	-5 to 5	meters

GPS_MB1_OFS_Y: Base antenna Y position offset

Note: This parameter is for advanced users

Y position of the base GPS antenna in body frame. Positive Y is to the right of the origin. Use antenna phase centroid location if provided by the manufacturer.

Increment	Range	Units
0.01	-5 to 5	meters

GPS_MB1_OFS_Z: Base antenna Z position offset

Note: This parameter is for advanced users

Z position of the base GPS antenna in body frame. Positive Z is down from the origin. Use antenna phase centroid location if provided by the manufacturer.

Increment	Range	Units
0.01	-5 to 5	meters

GPS_MB2_ Parameters

GPS_MB2_TYPE: Moving base type

Note: This parameter is for advanced users

Note: Reboot required after change

Controls the type of moving base used if using moving base.

Values
Value Meaning 0 Relative to alternate GPS instance 1 RelativeToCustomBase

GPS_MB2_OFS_X: Base antenna X position offset

Note: This parameter is for advanced users

X position of the base GPS antenna in body frame. Positive X is forward of the origin. Use antenna phase centroid location if provided by the manufacturer.

Increment	Range	Units
0.01	-5 to 5	meters

GPS_MB2_OFS_Y: Base antenna Y position offset

Note: This parameter is for advanced users

Y position of the base GPS antenna in body frame. Positive Y is to the right of the origin. Use antenna phase centroid location if provided by the manufacturer.

Increment	Range	Units
0.01	-5 to 5	meters

GPS_MB2_OFS_Z: Base antenna Z position offset

Note: This parameter is for advanced users

Z position of the base GPS antenna in body frame. Positive Z is down from the origin. Use antenna phase centroid location if provided by the manufacturer.

Increment	Range	Units
0.01	-5 to 5	meters

INS_ Parameters

INS_GYROFFS_X: Gyro offsets of X axis

Note: This parameter is for advanced users

Gyro sensor offsets of X axis. This is setup on each boot during gyro calibrations

Calibration	Units
1	radians per second

INS_GYROFFS_Y: Gyro offsets of Y axis

Note: This parameter is for advanced users

Gyro sensor offsets of Y axis. This is setup on each boot during gyro calibrations

Calibration	Units
1	radians per second

INS_GYROFFS_Z: Gyro offsets of Z axis

Note: This parameter is for advanced users

Gyro sensor offsets of Z axis. This is setup on each boot during gyro calibrations

Calibration	Units
1	radians per second

INS_GYR2OFFS_X: Gyro2 offsets of X axis

Note: This parameter is for advanced users

Gyro2 sensor offsets of X axis. This is setup on each boot during gyro calibrations

Calibration	Units
1	radians per second

INS_GYR2OFFS_Y: Gyro2 offsets of Y axis

Note: This parameter is for advanced users

Gyro2 sensor offsets of Y axis. This is setup on each boot during gyro calibrations

Calibration	Units
1	radians per second

INS_GYR2OFFS_Z: Gyro2 offsets of Z axis

Note: This parameter is for advanced users

Gyro2 sensor offsets of Z axis. This is setup on each boot during gyro calibrations

Calibration	Units
1	radians per second

INS_GYR3OFFS_X: Gyro3 offsets of X axis

Note: This parameter is for advanced users

Gyro3 sensor offsets of X axis. This is setup on each boot during gyro calibrations

Calibration	Units
1	radians per second

INS_GYR3OFFS_Y: Gyro3 offsets of Y axis

Note: This parameter is for advanced users

Gyro3 sensor offsets of Y axis. This is setup on each boot during gyro calibrations

Calibration	Units
1	radians per second

INS_GYR3OFFS_Z: Gyro3 offsets of Z axis

Note: This parameter is for advanced users

Gyro3 sensor offsets of Z axis. This is setup on each boot during gyro calibrations

Calibration	Units
1	radians per second

INS_ACCSCAL_X: Accelerometer scaling of X axis

Note: This parameter is for advanced users

Accelerometer scaling of X axis. Calculated during acceleration calibration routine

Calibration	Range
1	0.8 to 1.2

INS_ACCSCAL_Y: Accelerometer scaling of Y axis

Note: This parameter is for advanced users

Accelerometer scaling of Y axis Calculated during acceleration calibration routine

Calibration	Range
1	0.8 to 1.2

INS_ACCSCAL_Z: Accelerometer scaling of Z axis

Note: This parameter is for advanced users

Accelerometer scaling of Z axis Calculated during acceleration calibration routine

Calibration	Range
1	0.8 to 1.2

INS_ACCOFFS_X: Accelerometer offsets of X axis

Note: This parameter is for advanced users

Accelerometer offsets of X axis. This is setup using the acceleration calibration or level operations

Calibration	Range	Units
1	-3.5 to 3.5	meters per square second

INS_ACCOFFS_Y: Accelerometer offsets of Y axis

Note: This parameter is for advanced users

Accelerometer offsets of Y axis. This is setup using the acceleration calibration or level operations

Calibration	Range	Units
1	-3.5 to 3.5	meters per square second

INS_ACCOFFS_Z: Accelerometer offsets of Z axis

Note: This parameter is for advanced users

Accelerometer offsets of Z axis. This is setup using the acceleration calibration or level operations

Calibration	Range	Units
1	-3.5 to 3.5	meters per square second

INS_ACC2SCAL_X: Accelerometer2 scaling of X axis

Note: This parameter is for advanced users

Accelerometer2 scaling of X axis. Calculated during acceleration calibration routine

Calibration	Range
1	0.8 to 1.2

INS_ACC2SCAL_Y: Accelerometer2 scaling of Y axis

Note: This parameter is for advanced users

Accelerometer2 scaling of Y axis Calculated during acceleration calibration routine

Calibration	Range
1	0.8 to 1.2

INS_ACC2SCAL_Z: Accelerometer2 scaling of Z axis

Note: This parameter is for advanced users

Accelerometer2 scaling of Z axis Calculated during acceleration calibration routine

Calibration	Range
1	0.8 to 1.2

INS_ACC2OFFS_X: Accelerometer2 offsets of X axis

Note: This parameter is for advanced users

Accelerometer2 offsets of X axis. This is setup using the acceleration calibration or level operations

Calibration	Range	Units
1	-3.5 to 3.5	meters per square second

INS_ACC2OFFS_Y: Accelerometer2 offsets of Y axis

Note: This parameter is for advanced users

Accelerometer2 offsets of Y axis. This is setup using the acceleration calibration or level operations

Calibration	Range	Units
1	-3.5 to 3.5	meters per square second

INS_ACC2OFFS_Z: Accelerometer2 offsets of Z axis

Note: This parameter is for advanced users

Accelerometer2 offsets of Z axis. This is setup using the acceleration calibration or level operations

Calibration	Range	Units
1	-3.5 to 3.5	meters per square second

INS_ACC3SCAL_X: Accelerometer3 scaling of X axis

Note: This parameter is for advanced users

Accelerometer3 scaling of X axis. Calculated during acceleration calibration routine

Calibration	Range
1	0.8 to 1.2

INS_ACC3SCAL_Y: Accelerometer3 scaling of Y axis

Note: This parameter is for advanced users

Accelerometer3 scaling of Y axis Calculated during acceleration calibration routine

Calibration	Range
1	0.8 to 1.2

INS_ACC3SCAL_Z: Accelerometer3 scaling of Z axis

Note: This parameter is for advanced users

Accelerometer3 scaling of Z axis Calculated during acceleration calibration routine

Calibration	Range
1	0.8 to 1.2

INS_ACC3OFFS_X: Accelerometer3 offsets of X axis

Note: This parameter is for advanced users

Accelerometer3 offsets of X axis. This is setup using the acceleration calibration or level operations

Calibration	Range	Units
1	-3.5 to 3.5	meters per square second

INS_ACC3OFFS_Y: Accelerometer3 offsets of Y axis

Note: This parameter is for advanced users

Accelerometer3 offsets of Y axis. This is setup using the acceleration calibration or level operations

Calibration	Range	Units
1	-3.5 to 3.5	meters per square second

INS_ACC3OFFS_Z: Accelerometer3 offsets of Z axis

Note: This parameter is for advanced users

Accelerometer3 offsets of Z axis. This is setup using the acceleration calibration or level operations

Calibration	Range	Units
1	-3.5 to 3.5	meters per square second

INS_GYRO_FILTER: Gyro filter cutoff frequency

Note: This parameter is for advanced users

Filter cutoff frequency for gyroscopes. This can be set to a lower value to try to cope with very high vibration levels in aircraft. A value of zero means no filtering (not recommended!)

Range	Units
0 to 256	hertz

INS_ACCEL_FILTER: Accel filter cutoff frequency

Note: This parameter is for advanced users

Filter cutoff frequency for accelerometers. This can be set to a lower value to try to cope with very high vibration levels in aircraft. A value of zero means no filtering (not recommended!)

Range	Units
0 to 256	hertz

INS_USE: Use first IMU for attitude, velocity and position estimates

Note: This parameter is for advanced users

Use first IMU for attitude, velocity and position estimates

Values
Value Meaning 0 Disabled 1 Enabled

INS_USE2: Use second IMU for attitude, velocity and position estimates

Note: This parameter is for advanced users

Use second IMU for attitude, velocity and position estimates

Values
Value Meaning 0 Disabled 1 Enabled

INS_USE3: Use third IMU for attitude, velocity and position estimates

Note: This parameter is for advanced users

Use third IMU for attitude, velocity and position estimates

Values
Value Meaning 0 Disabled 1 Enabled

INS_STILL_THRESH: Stillness threshold for detecting if we are moving

Note: This parameter is for advanced users

Threshold to tolerate vibration to determine if vehicle is motionless. This depends on the frame type and if there is a constant vibration due to motors before launch or after landing. Total motionless is about 0.05. Suggested values: Planes/rover use 0.1, multirotors use 1, tradHeli uses 5

Range
0.05 to 50

INS_GYR_CAL: Gyro Calibration scheme

Note: This parameter is for advanced users

Conrols when automatic gyro calibration is performed

Values
Value Meaning 0 Never 1 Start-up only

INS_TRIM_OPTION: Accel cal trim option

Note: This parameter is for advanced users

Specifies how the accel cal routine determines the trims

Values
Value Meaning 0 Don’t adjust the trims 1 Assume first orientation was level 2 Assume ACC_BODYFIX is perfectly aligned to the vehicle

INS_ACC_BODYFIX: Body-fixed accelerometer

Note: This parameter is for advanced users

The body-fixed accelerometer to be used for trim calculation

Values
Value Meaning 1 IMU 1 2 IMU 2 3 IMU 3

INS_POS1_X: IMU accelerometer X position

Note: This parameter is for advanced users

X position of the first IMU Accelerometer in body frame. Positive X is forward of the origin. Attention: The IMU should be located as close to the vehicle c.g. as practical so that the value of this parameter is minimised. Failure to do so can result in noisy navigation velocity measurements due to vibration and IMU gyro noise. If the IMU cannot be moved and velocity noise is a problem, a location closer to the IMU can be used as the body frame origin.

Increment	Range	Units
0.01	-5 to 5	meters

INS_POS1_Y: IMU accelerometer Y position

Note: This parameter is for advanced users

Y position of the first IMU accelerometer in body frame. Positive Y is to the right of the origin. Attention: The IMU should be located as close to the vehicle c.g. as practical so that the value of this parameter is minimised. Failure to do so can result in noisy navigation velocity measurements due to vibration and IMU gyro noise. If the IMU cannot be moved and velocity noise is a problem, a location closer to the IMU can be used as the body frame origin.

Increment	Range	Units
0.01	-5 to 5	meters

INS_POS1_Z: IMU accelerometer Z position

Note: This parameter is for advanced users

Z position of the first IMU accelerometer in body frame. Positive Z is down from the origin. Attention: The IMU should be located as close to the vehicle c.g. as practical so that the value of this parameter is minimised. Failure to do so can result in noisy navigation velocity measurements due to vibration and IMU gyro noise. If the IMU cannot be moved and velocity noise is a problem, a location closer to the IMU can be used as the body frame origin.

Increment	Range	Units
0.01	-5 to 5	meters

INS_POS2_X: IMU accelerometer X position

Note: This parameter is for advanced users

X position of the second IMU accelerometer in body frame. Positive X is forward of the origin. Attention: The IMU should be located as close to the vehicle c.g. as practical so that the value of this parameter is minimised. Failure to do so can result in noisy navigation velocity measurements due to vibration and IMU gyro noise. If the IMU cannot be moved and velocity noise is a problem, a location closer to the IMU can be used as the body frame origin.

Increment	Range	Units
0.01	-5 to 5	meters

INS_POS2_Y: IMU accelerometer Y position

Note: This parameter is for advanced users

Y position of the second IMU accelerometer in body frame. Positive Y is to the right of the origin. Attention: The IMU should be located as close to the vehicle c.g. as practical so that the value of this parameter is minimised. Failure to do so can result in noisy navigation velocity measurements due to vibration and IMU gyro noise. If the IMU cannot be moved and velocity noise is a problem, a location closer to the IMU can be used as the body frame origin.

Increment	Range	Units
0.01	-5 to 5	meters

INS_POS2_Z: IMU accelerometer Z position

Note: This parameter is for advanced users

Z position of the second IMU accelerometer in body frame. Positive Z is down from the origin. Attention: The IMU should be located as close to the vehicle c.g. as practical so that the value of this parameter is minimised. Failure to do so can result in noisy navigation velocity measurements due to vibration and IMU gyro noise. If the IMU cannot be moved and velocity noise is a problem, a location closer to the IMU can be used as the body frame origin.

Increment	Range	Units
0.01	-5 to 5	meters

INS_POS3_X: IMU accelerometer X position

Note: This parameter is for advanced users

X position of the third IMU accelerometer in body frame. Positive X is forward of the origin. Attention: The IMU should be located as close to the vehicle c.g. as practical so that the value of this parameter is minimised. Failure to do so can result in noisy navigation velocity measurements due to vibration and IMU gyro noise. If the IMU cannot be moved and velocity noise is a problem, a location closer to the IMU can be used as the body frame origin.

Range	Units
-10 to 10	meters

INS_POS3_Y: IMU accelerometer Y position

Note: This parameter is for advanced users

Y position of the third IMU accelerometer in body frame. Positive Y is to the right of the origin. Attention: The IMU should be located as close to the vehicle c.g. as practical so that the value of this parameter is minimised. Failure to do so can result in noisy navigation velocity measurements due to vibration and IMU gyro noise. If the IMU cannot be moved and velocity noise is a problem, a location closer to the IMU can be used as the body frame origin.

Increment	Range	Units
0.01	-5 to 5	meters

INS_POS3_Z: IMU accelerometer Z position

Note: This parameter is for advanced users

Z position of the third IMU accelerometer in body frame. Positive Z is down from the origin. Attention: The IMU should be located as close to the vehicle c.g. as practical so that the value of this parameter is minimised. Failure to do so can result in noisy navigation velocity measurements due to vibration and IMU gyro noise. If the IMU cannot be moved and velocity noise is a problem, a location closer to the IMU can be used as the body frame origin.

Increment	Range	Units
0.01	-5 to 5	meters

INS_GYR_ID: Gyro ID

Note: This parameter is for advanced users

Gyro sensor ID, taking into account its type, bus and instance

ReadOnly
True

INS_GYR2_ID: Gyro2 ID

Note: This parameter is for advanced users

Gyro2 sensor ID, taking into account its type, bus and instance

ReadOnly
True

INS_GYR3_ID: Gyro3 ID

Note: This parameter is for advanced users

Gyro3 sensor ID, taking into account its type, bus and instance

ReadOnly
True

INS_ACC_ID: Accelerometer ID

Note: This parameter is for advanced users

Accelerometer sensor ID, taking into account its type, bus and instance

ReadOnly
True

INS_ACC2_ID: Accelerometer2 ID

Note: This parameter is for advanced users

Accelerometer2 sensor ID, taking into account its type, bus and instance

ReadOnly
True

INS_ACC3_ID: Accelerometer3 ID

Note: This parameter is for advanced users

Accelerometer3 sensor ID, taking into account its type, bus and instance

ReadOnly
True

INS_FAST_SAMPLE: Fast sampling mask

Note: This parameter is for advanced users

Mask of IMUs to enable fast sampling on, if available

Bitmask
Bit Meaning 0 FirstIMU 1 SecondIMU 2 ThirdIMU

INS_ENABLE_MASK: IMU enable mask

Note: This parameter is for advanced users

Bitmask of IMUs to enable. It can be used to prevent startup of specific detected IMUs

Bitmask
Bit Meaning 0 FirstIMU 1 SecondIMU 2 ThirdIMU 3 FourthIMU 4 FifthIMU 5 SixthIMU 6 SeventhIMU

INS_GYRO_RATE: Gyro rate for IMUs with Fast Sampling enabled

Note: This parameter is for advanced users

Note: Reboot required after change

Gyro rate for IMUs with fast sampling enabled. The gyro rate is the sample rate at which the IMU filters operate and needs to be at least double the maximum filter frequency. If the sensor does not support the selected rate the next highest supported rate will be used. For IMUs which do not support fast sampling this setting is ignored and the default gyro rate of 1Khz is used.

Values
Value Meaning 0 1kHz 1 2kHz 2 4kHz 3 8kHz

INS_ACC1_CALTEMP: Calibration temperature for 1st accelerometer

Note: This parameter is for advanced users

Temperature that the 1st accelerometer was calibrated at

Calibration	Units
1	degrees Celsius

INS_GYR1_CALTEMP: Calibration temperature for 1st gyroscope

Note: This parameter is for advanced users

Temperature that the 1st gyroscope was calibrated at

Calibration	Units
1	degrees Celsius

INS_ACC2_CALTEMP: Calibration temperature for 2nd accelerometer

Note: This parameter is for advanced users

Temperature that the 2nd accelerometer was calibrated at

Calibration	Units
1	degrees Celsius

INS_GYR2_CALTEMP: Calibration temperature for 2nd gyroscope

Note: This parameter is for advanced users

Temperature that the 2nd gyroscope was calibrated at

Calibration	Units
1	degrees Celsius

INS_ACC3_CALTEMP: Calibration temperature for 3rd accelerometer

Note: This parameter is for advanced users

Temperature that the 3rd accelerometer was calibrated at

Calibration	Units
1	degrees Celsius

INS_GYR3_CALTEMP: Calibration temperature for 3rd gyroscope

Note: This parameter is for advanced users

Temperature that the 3rd gyroscope was calibrated at

Calibration	Units
1	degrees Celsius

INS_TCAL_OPTIONS: Options for temperature calibration

Note: This parameter is for advanced users

This enables optional temperature calibration features. Setting PersistParams will save the accelerometer and temperature calibration parameters in the bootloader sector on the next update of the bootloader.

Bitmask
Bit Meaning 0 PersistParams

INS_HNTC2_ Parameters

INS_HNTC2_ENABLE: Harmonic Notch Filter enable

Note: This parameter is for advanced users

Harmonic Notch Filter enable

Values
Value Meaning 0 Disabled 1 Enabled

INS_HNTC2_FREQ: Harmonic Notch Filter base frequency

Note: This parameter is for advanced users

Harmonic Notch Filter base center frequency in Hz. This should be set at most half the backend gyro rate (which is typically 1Khz). For helicopters using RPM sensor to dynamically set the notch frequency, use this parameter to provide a lower limit to the dynamic notch filter. Recommend setting it to half the operating rotor speed in Hz.

Range	Units
10 to 495	hertz

INS_HNTC2_BW: Harmonic Notch Filter bandwidth

Note: This parameter is for advanced users

Harmonic Notch Filter bandwidth in Hz. This is typically set to half the base frequency. The ratio of base frequency to bandwidth determines the notch quality factor and is fixed across harmonics.

Range	Units
5 to 250	hertz

INS_HNTC2_ATT: Harmonic Notch Filter attenuation

Note: This parameter is for advanced users

Harmonic Notch Filter attenuation in dB. Values greater than 40dB will typically produce a hard notch rather than a modest attenuation of motor noise.

Range	Units
5 to 50	decibel

INS_HNTC2_HMNCS: Harmonic Notch Filter harmonics

Note: This parameter is for advanced users

Note: Reboot required after change

Bitmask of harmonic frequencies to apply Harmonic Notch Filter to. This option takes effect on the next reboot. A value of 0 disables this filter. The first harmonic refers to the base frequency.

Bitmask
Bit Meaning 0 1st harmonic 1 2nd harmonic 2 3rd harmonic 3 4th hamronic 4 5th harmonic 5 6th harmonic 6 7th harmonic 7 8th harmonic

INS_HNTC2_REF: Harmonic Notch Filter reference value

Note: This parameter is for advanced users

Note: Reboot required after change

A reference value of zero disables dynamic updates on the Harmonic Notch Filter and a positive value enables dynamic updates on the Harmonic Notch Filter. For throttle-based scaling, this parameter is the reference value associated with the specified frequency to facilitate frequency scaling of the Harmonic Notch Filter. For RPM and ESC telemetry based tracking, this parameter is set to 1 to enable the Harmonic Notch Filter using the RPM sensor or ESC telemetry set to measure rotor speed. The sensor data is converted to Hz automatically for use in the Harmonic Notch Filter. This reference value may also be used to scale the sensor data, if required. For example, rpm sensor data is required to measure heli motor RPM. Therefore the reference value can be used to scale the RPM sensor to the rotor RPM.

Range
0.0 to 1.0

INS_HNTC2_MODE: Harmonic Notch Filter dynamic frequency tracking mode

Note: This parameter is for advanced users

Harmonic Notch Filter dynamic frequency tracking mode. Dynamic updates can be throttle, RPM sensor, ESC telemetry or dynamic FFT based. Throttle-based updates should only be used with multicopters.

Range	Values
0 to 4	Value Meaning 0 Disabled 1 Throttle 2 RPM Sensor 3 ESC Telemetry 4 Dynamic FFT 5 Second RPM Sensor

INS_HNTC2_OPTS: Harmonic Notch Filter options

Note: This parameter is for advanced users

Note: Reboot required after change

Harmonic Notch Filter options. Triple and double-notches can provide deeper attenuation across a wider bandwidth with reduced latency than single notches and are suitable for larger aircraft. Dynamic harmonics attaches a harmonic notch to each detected noise frequency instead of simply being multiples of the base frequency, in the case of FFT it will attach notches to each of three detected noise peaks, in the case of ESC it will attach notches to each of four motor RPM values. Loop rate update changes the notch center frequency at the scheduler loop rate rather than at the default of 200Hz. If both double and triple notches are specified only double notches will take effect.

Bitmask
Bit Meaning 0 Double notch 1 Dynamic harmonic 2 Update at loop rate 3 EnableOnAllIMUs 4 Triple notch

INS_HNTC2_FM_RAT: Throttle notch min freqency ratio

Note: This parameter is for advanced users

The minimum ratio below the configured frequency to take throttle based notch filters when flying at a throttle level below the reference throttle. Note that lower frequency notch filters will have more phase lag. If you want throttle based notch filtering to be effective at a throttle up to 30% below the configured notch frequency then set this parameter to 0.7. The default of 1.0 means the notch will not go below the frequency in the FREQ parameter.

Range
0.1 to 1.0

INS_HNTCH_ Parameters

INS_HNTCH_ENABLE: Harmonic Notch Filter enable

Note: This parameter is for advanced users

Harmonic Notch Filter enable

Values
Value Meaning 0 Disabled 1 Enabled

INS_HNTCH_FREQ: Harmonic Notch Filter base frequency

Note: This parameter is for advanced users

Harmonic Notch Filter base center frequency in Hz. This should be set at most half the backend gyro rate (which is typically 1Khz). For helicopters using RPM sensor to dynamically set the notch frequency, use this parameter to provide a lower limit to the dynamic notch filter. Recommend setting it to half the operating rotor speed in Hz.

Range	Units
10 to 495	hertz

INS_HNTCH_BW: Harmonic Notch Filter bandwidth

Note: This parameter is for advanced users

Harmonic Notch Filter bandwidth in Hz. This is typically set to half the base frequency. The ratio of base frequency to bandwidth determines the notch quality factor and is fixed across harmonics.

Range	Units
5 to 250	hertz

INS_HNTCH_ATT: Harmonic Notch Filter attenuation

Note: This parameter is for advanced users

Harmonic Notch Filter attenuation in dB. Values greater than 40dB will typically produce a hard notch rather than a modest attenuation of motor noise.

Range	Units
5 to 50	decibel

INS_HNTCH_HMNCS: Harmonic Notch Filter harmonics

Note: This parameter is for advanced users

Note: Reboot required after change

Bitmask of harmonic frequencies to apply Harmonic Notch Filter to. This option takes effect on the next reboot. A value of 0 disables this filter. The first harmonic refers to the base frequency.

Bitmask
Bit Meaning 0 1st harmonic 1 2nd harmonic 2 3rd harmonic 3 4th hamronic 4 5th harmonic 5 6th harmonic 6 7th harmonic 7 8th harmonic

INS_HNTCH_REF: Harmonic Notch Filter reference value

Note: This parameter is for advanced users

Note: Reboot required after change

A reference value of zero disables dynamic updates on the Harmonic Notch Filter and a positive value enables dynamic updates on the Harmonic Notch Filter. For throttle-based scaling, this parameter is the reference value associated with the specified frequency to facilitate frequency scaling of the Harmonic Notch Filter. For RPM and ESC telemetry based tracking, this parameter is set to 1 to enable the Harmonic Notch Filter using the RPM sensor or ESC telemetry set to measure rotor speed. The sensor data is converted to Hz automatically for use in the Harmonic Notch Filter. This reference value may also be used to scale the sensor data, if required. For example, rpm sensor data is required to measure heli motor RPM. Therefore the reference value can be used to scale the RPM sensor to the rotor RPM.

Range
0.0 to 1.0

INS_HNTCH_MODE: Harmonic Notch Filter dynamic frequency tracking mode

Note: This parameter is for advanced users

Harmonic Notch Filter dynamic frequency tracking mode. Dynamic updates can be throttle, RPM sensor, ESC telemetry or dynamic FFT based. Throttle-based updates should only be used with multicopters.

Range	Values
0 to 4	Value Meaning 0 Disabled 1 Throttle 2 RPM Sensor 3 ESC Telemetry 4 Dynamic FFT 5 Second RPM Sensor

INS_HNTCH_OPTS: Harmonic Notch Filter options

Note: This parameter is for advanced users

Note: Reboot required after change

Harmonic Notch Filter options. Triple and double-notches can provide deeper attenuation across a wider bandwidth with reduced latency than single notches and are suitable for larger aircraft. Dynamic harmonics attaches a harmonic notch to each detected noise frequency instead of simply being multiples of the base frequency, in the case of FFT it will attach notches to each of three detected noise peaks, in the case of ESC it will attach notches to each of four motor RPM values. Loop rate update changes the notch center frequency at the scheduler loop rate rather than at the default of 200Hz. If both double and triple notches are specified only double notches will take effect.

Bitmask
Bit Meaning 0 Double notch 1 Dynamic harmonic 2 Update at loop rate 3 EnableOnAllIMUs 4 Triple notch

INS_HNTCH_FM_RAT: Throttle notch min freqency ratio

Note: This parameter is for advanced users

The minimum ratio below the configured frequency to take throttle based notch filters when flying at a throttle level below the reference throttle. Note that lower frequency notch filters will have more phase lag. If you want throttle based notch filtering to be effective at a throttle up to 30% below the configured notch frequency then set this parameter to 0.7. The default of 1.0 means the notch will not go below the frequency in the FREQ parameter.

Range
0.1 to 1.0

INS_LOG_ Parameters

INS_LOG_BAT_CNT: sample count per batch

Note: This parameter is for advanced users

Note: Reboot required after change

Number of samples to take when logging streams of IMU sensor readings. Will be rounded down to a multiple of 32. This option takes effect on the next reboot.

Increment
32

INS_LOG_BAT_MASK: Sensor Bitmask

Note: This parameter is for advanced users

Note: Reboot required after change

Bitmap of which IMUs to log batch data for. This option takes effect on the next reboot.

Bitmask
Bit Meaning 0 IMU1 1 IMU2 2 IMU3

INS_LOG_BAT_OPT: Batch Logging Options Mask

Note: This parameter is for advanced users

Options for the BatchSampler.

Bitmask
Bit Meaning 0 Sensor-Rate Logging (sample at full sensor rate seen by AP) 1 Sample post-filtering 2 Sample pre- and post-filter

INS_LOG_BAT_LGIN: logging interval

Interval between pushing samples to the AP_Logger log

Increment	Units
10	milliseconds

INS_LOG_BAT_LGCT: logging count

Number of samples to push to count every INS_LOG_BAT_LGIN

Increment
1

INS_TCAL1_ Parameters

INS_TCAL1_ENABLE: Enable temperature calibration

Note: This parameter is for advanced users

Note: Reboot required after change

Enable the use of temperature calibration parameters for this IMU. For automatic learning set to 2 and also set the INS_TCALn_TMAX to the target temperature, then reboot

Values
Value Meaning 0 Disabled 1 Enabled 2 LearnCalibration

INS_TCAL1_TMIN: Temperature calibration min

Note: This parameter is for advanced users

The minimum temperature that the calibration is valid for

Calibration	Range	Units
1	-70 to 80	degrees Celsius

INS_TCAL1_TMAX: Temperature calibration max

Note: This parameter is for advanced users

The maximum temperature that the calibration is valid for. This must be at least 10 degrees above TMIN for calibration

Calibration	Range	Units
1	-70 to 80	degrees Celsius

INS_TCAL1_ACC1_X: Accelerometer 1st order temperature coefficient X axis

Note: This parameter is for advanced users

This is the 1st order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL1_ACC1_Y: Accelerometer 1st order temperature coefficient Y axis

Note: This parameter is for advanced users

This is the 1st order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL1_ACC1_Z: Accelerometer 1st order temperature coefficient Z axis

Note: This parameter is for advanced users

This is the 1st order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL1_ACC2_X: Accelerometer 2nd order temperature coefficient X axis

Note: This parameter is for advanced users

This is the 2nd order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL1_ACC2_Y: Accelerometer 2nd order temperature coefficient Y axis

Note: This parameter is for advanced users

This is the 2nd order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL1_ACC2_Z: Accelerometer 2nd order temperature coefficient Z axis

Note: This parameter is for advanced users

This is the 2nd order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL1_ACC3_X: Accelerometer 3rd order temperature coefficient X axis

Note: This parameter is for advanced users

This is the 3rd order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL1_ACC3_Y: Accelerometer 3rd order temperature coefficient Y axis

Note: This parameter is for advanced users

This is the 3rd order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL1_ACC3_Z: Accelerometer 3rd order temperature coefficient Z axis

Note: This parameter is for advanced users

This is the 3rd order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL1_GYR1_X: Gyroscope 1st order temperature coefficient X axis

Note: This parameter is for advanced users

This is the 1st order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL1_GYR1_Y: Gyroscope 1st order temperature coefficient Y axis

Note: This parameter is for advanced users

This is the 1st order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL1_GYR1_Z: Gyroscope 1st order temperature coefficient Z axis

Note: This parameter is for advanced users

This is the 1st order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL1_GYR2_X: Gyroscope 2nd order temperature coefficient X axis

Note: This parameter is for advanced users

This is the 2nd order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL1_GYR2_Y: Gyroscope 2nd order temperature coefficient Y axis

Note: This parameter is for advanced users

This is the 2nd order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL1_GYR2_Z: Gyroscope 2nd order temperature coefficient Z axis

Note: This parameter is for advanced users

This is the 2nd order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL1_GYR3_X: Gyroscope 3rd order temperature coefficient X axis

Note: This parameter is for advanced users

This is the 3rd order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL1_GYR3_Y: Gyroscope 3rd order temperature coefficient Y axis

Note: This parameter is for advanced users

This is the 3rd order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL1_GYR3_Z: Gyroscope 3rd order temperature coefficient Z axis

Note: This parameter is for advanced users

This is the 3rd order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL2_ Parameters

INS_TCAL2_ENABLE: Enable temperature calibration

Note: This parameter is for advanced users

Note: Reboot required after change

Enable the use of temperature calibration parameters for this IMU. For automatic learning set to 2 and also set the INS_TCALn_TMAX to the target temperature, then reboot

Values
Value Meaning 0 Disabled 1 Enabled 2 LearnCalibration

INS_TCAL2_TMIN: Temperature calibration min

Note: This parameter is for advanced users

The minimum temperature that the calibration is valid for

Calibration	Range	Units
1	-70 to 80	degrees Celsius

INS_TCAL2_TMAX: Temperature calibration max

Note: This parameter is for advanced users

The maximum temperature that the calibration is valid for. This must be at least 10 degrees above TMIN for calibration

Calibration	Range	Units
1	-70 to 80	degrees Celsius

INS_TCAL2_ACC1_X: Accelerometer 1st order temperature coefficient X axis

Note: This parameter is for advanced users

This is the 1st order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL2_ACC1_Y: Accelerometer 1st order temperature coefficient Y axis

Note: This parameter is for advanced users

This is the 1st order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL2_ACC1_Z: Accelerometer 1st order temperature coefficient Z axis

Note: This parameter is for advanced users

This is the 1st order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL2_ACC2_X: Accelerometer 2nd order temperature coefficient X axis

Note: This parameter is for advanced users

This is the 2nd order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL2_ACC2_Y: Accelerometer 2nd order temperature coefficient Y axis

Note: This parameter is for advanced users

This is the 2nd order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL2_ACC2_Z: Accelerometer 2nd order temperature coefficient Z axis

Note: This parameter is for advanced users

This is the 2nd order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL2_ACC3_X: Accelerometer 3rd order temperature coefficient X axis

Note: This parameter is for advanced users

This is the 3rd order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL2_ACC3_Y: Accelerometer 3rd order temperature coefficient Y axis

Note: This parameter is for advanced users

This is the 3rd order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL2_ACC3_Z: Accelerometer 3rd order temperature coefficient Z axis

Note: This parameter is for advanced users

This is the 3rd order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL2_GYR1_X: Gyroscope 1st order temperature coefficient X axis

Note: This parameter is for advanced users

This is the 1st order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL2_GYR1_Y: Gyroscope 1st order temperature coefficient Y axis

Note: This parameter is for advanced users

This is the 1st order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL2_GYR1_Z: Gyroscope 1st order temperature coefficient Z axis

Note: This parameter is for advanced users

This is the 1st order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL2_GYR2_X: Gyroscope 2nd order temperature coefficient X axis

Note: This parameter is for advanced users

This is the 2nd order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL2_GYR2_Y: Gyroscope 2nd order temperature coefficient Y axis

Note: This parameter is for advanced users

This is the 2nd order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL2_GYR2_Z: Gyroscope 2nd order temperature coefficient Z axis

Note: This parameter is for advanced users

This is the 2nd order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL2_GYR3_X: Gyroscope 3rd order temperature coefficient X axis

Note: This parameter is for advanced users

This is the 3rd order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL2_GYR3_Y: Gyroscope 3rd order temperature coefficient Y axis

Note: This parameter is for advanced users

This is the 3rd order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL2_GYR3_Z: Gyroscope 3rd order temperature coefficient Z axis

Note: This parameter is for advanced users

This is the 3rd order temperature coefficient from a temperature calibration

Calibration
1

INS_TCAL3_ Parameters

INS_TCAL3_ENABLE: Enable temperature calibration

Note: This parameter is for advanced users

Note: Reboot required after change

Enable the use of temperature calibration parameters for this IMU. For automatic learning set to 2 and also set the INS_TCALn_TMAX to the target temperature, then reboot

Values
Value Meaning 0 Disabled 1 Enabled 2 LearnCa