Compass calibration using the RC

#1

I am interested in implementing compass calibration using RC radio without using QGC (As in Ardupilot). Any suggestions about it are welcome. Thanks

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#2

Hi,

Just curious, why would you want to do that?

#3

Compass calibration is required when flying in different environments. This makes the calibration procedure more practical and eliminates the need of telemetry link and ground station.

#4

The compass calibration compensates for sensor scale factor and offsets. Hence it is independent of the environment. (Except for some temperature dependency)

#5

If that is the case, implementing this is useless.

#6

Main reasons to recalibrate the magnetometer are

  1. the sensor got magnetized during e.g. shipping the drone or you accidentally had a magnet very close to it
  2. you change payload and that affect the sensor
#7

OK thanks for the explanation, But I wonder how the payload affects on the mag calibration.

#8

Depends on the payload of course, but could be magnetic interference from the electronics, or soft iron effects from metal objects etc

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