This page is a work-in-progress and the instructions below have not been completely verified to be correct
Most flight controllers include a barometer directly on the flight controller but attaching an external barometer can be useful in order to place the barometer away from air pressure disturbances.
Copter users can partially reduce the effect of air pressure disurbances by enabling Ground Effect Compensation
Connecting and Configuring¶
Connect the barometer to the flight controller’s I2C port as shown below
Real-time pressure and temperature from the barometer are sent to the ground station. If using Mission Planner these values can be seen on the Flight Data >> Status tab, look for “press_abs” and “press_temp”.