I’ve been wondering why I’ve had difficulties getting magnetometer (compass) working / calibrated properly these past few days then the penny dropped in my old grey matter…
With the default settings of:-
- set mag_declination = 0
- set inav_auto_mag_decl = ON
you need a good GPS fix 'cos INAV needs to know where you are on the planet to calculate the magnetic declination. which is why in the workshop it wouldn’t settle on a particular direction.
The alternative is to do it manually and get the mag dec figure from >here<
Then for example, Nuneaton, it would be … +0° 5’
- set mag_declination = 005 >see here<
- set inav_auto_mag_decl = OFF
Another few hours of my life lost to technology