Battery Monitors (aka Power Monitors/Modules)

The links below have information about the most commonly used power monitors/modules

Up to 10 batteries/power monitors can be monitored. Each monitor has its own group of configuration parameters, designated by BATTx_ with x denoting each monitor in the system (first monitor “x” is null character, ie BATT_ prefix). In addition, a BATT_MONITOR “type” = SUM is available, that consolidates battery monitors into a single report using the BATT_SUM_MASK.

Note

some kinds of monitors can provide bi-directional battery current information. These are useful when generators or MPPT chargers are being utilized in the system to monitor the net charge state of the battery.

• Power Monitor Configuration

Power Monitors Connecting to AutoPilot Power Monitor Port

• Common Power Module
• AirbotPower Power Module
• CUAV HV PM
• Mauch Power Monitor
• SmartAP Power Distribution Board
• Synthetic Current Sensor/Analog Voltage Monitor

CAN/DroneCAN Power Monitor

• CUAV CAN/DroneCAN PMU
• Matek CAN-L4-BM DroneCan PMU
• Packet Digital MPPT Solar Controller
• Pomegranate Systems

I2C Power Monitor

• Rotoye BatMon Smart Battery

Power Monitoring Via Telemetry Equipped BLHeli32/S ESCs

• See this section of the ESC Telemetry page

EFI Fuel Monitoring

EFI Fuel Monitoring, See Electronic Fuel Injectors section on using BATT_MONITOR = 27 (EFI).

Liquid Fuel Monitors

• Fuel Monitors

Power Monitors/Modules provide these benefits:

• Most provide a stable power supply to the autopilot, in addition to monitoring, and therefore reduces the chance of a brown-out

• Allows real-time monitoring of the battery’s voltage and current and triggering a low battery failsafe

• Allows compensating for the interference on the compass from the motors using the COMPASS_MOT_x and COMPASS_PMOT_x parameters, see Advanced Compass Setup.