FPV University | Magnetometers versus FPV drones @FPVUniversity | Uploaded April 2023 | Updated October 2024, 8 hours ago.
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Many say that INAV or Ardupilot require magnetometer/compass on a FPV drone to fly. This is not true! Both INAV and Ardupilot will fly perfectly well without a magnetometer. Compass is only an optional sensor. Not mandatory. But INAV will require MAG to perform one specific function: Position Hold and Return To Home. If you don’t plan using them, you don’t need magnetometer at all!

Recommended GPS with magnetometer:
Matek M10-5883 bit.ly/3LuvXPB
Matek M8Q-5883 bit.ly/3ZVtPEd
Beitian BN-880 bit.ly/348jk3D