Magnetic Compass - Fail Error (Agriculture Quadcopter 15 L FERTILIZER-SPREADER)

[andrew.yushkevich]

Hi @DTLPRATEEK,

I think that this thread looks similar to yours:

About Magnetic Interference

After completing the test manual flying of my agriculture drone with empty payload, I did the log analysis, and found compass fail error: Test: Compass = FAIL- Large change in mag_field (82.34%) For Drone I am using: P 80 100KV T motor Flame 80A ESC 30 x 10.5 Propeller 12s12p 44.4V 34.8Ah Li-ion battery (Dimension - 25x25x7 cm , 7cm thickness) Flight controller - EDGE GPS - UAVCAN GNSS Battery is placed on the top cover of fuselage. and from battery Gps position is 15 cm above). Note: Befo…

There’re also some useful tips on how to prevent EM field effect and try to get rid of the error.

About Magnetic Interference

The solution is clearly stated in the video, as far as I am concerned: All power-wires must run in parallel with its own +/- counterpart. Twist/braid your wires where possible. use shielded wires for signal-transmission. place compass away for power-wires. if a buzzer is installed, place that away from the compass.