2019-10-01, 02:45 AM
If the motor is drawing 1 amps, then 2-3 centimeters is sufficient. If you have more current the distance needs to be more. 16cm should be plenty.
Its really easy to test by running "signalk_scope_wx" and plotting the "imu.compass" data. Then just move the motor manually and see if the compass changes, and move the controller closer until you see this effect. Then you will know what distance is needed. You need to do this not on a boat that is turning at anchor...
Even if the controller is too close and does affect the compass.. the autopilot will still work, but less optimal.
Sean
Its really easy to test by running "signalk_scope_wx" and plotting the "imu.compass" data. Then just move the motor manually and see if the compass changes, and move the controller closer until you see this effect. Then you will know what distance is needed. You need to do this not on a boat that is turning at anchor...
Even if the controller is too close and does affect the compass.. the autopilot will still work, but less optimal.
Sean