Does Spirit know heli orientation (yaw / pitch / roll) in some absolute form, without GeoLink?
I mean, if I take off the heli oriented to north, is it possible for Spirit to know this angle after 2 minutes of flying?
If this would be possible, then transmitting this data over telemetry would open a lot of possibilities, especially for OpenTX. For example showing you on screen heli yaw in case you've flown too far and see a dot in the sky.