I’m running Arduplane 3.4.2 with APM 2.6. When I read the information about configuring the airspeed sensor, it recommends the use of the Preflight Calibration function from Mission Planner. However, at the field, I only have access to an Andriod phone or tablet where I’m running the 3DR Tower app. Earlier versions of DroidPlanner appeared to have the ability to issue the Preflight calibration command, but it is not available in the current version.
Is there a reason this couldn’t be automatically done in the firmware? For example, I’m leaving the plane sit quietly for the GPS to initialize and lock. Couldn’t the airspeed sensor be calibrated during that time without issuing the MAV_CMD_PREFLIGHT_CALIBRATION command?
Alternatively, could this be triggered through some sort of stick command (full rudder left, full elevator down). I can’t change the Tower app, but creating a custom version of the APM firmware is within my reach.