I have a three pieces UAV build. Two are ready and the third is in the testing phase only to find a really strange behavior the last two days. Cube black,Herelink, Here2 on Can mode (i use only compass 3 external, HERE2 compass).
First outside boot was fine, compass was calibrated and stabilize flight was fine (all settings were copied from previous builds, all 4.0.3), alt hold was tested to feel the PID and that was fine also…until i decided to run a strict compass calibration. Calibration as successful but after reboot i was getting “waiting for GPS”, while i could see 15sats on my screen and the Here compass was gone from the HWID section, so i decided to switch a cable at first.
New cable, test version of Compass Calibration on relaxed within the office and everything seemed to work fine. I go for a test and do another relaxed calibration on large open space. All works super…until i decide once more to go strict and all the same as above once more.
During my tests i found THE strangest behavior. I connect and boot Cube via USB and compass is found, i boot via battery and connect with telemetry and Compass is not there. Again USB, again compass found.
I tested this sequence maybe 20times just to make sure it was not by accident.
If i boot via USB and then connect power, compass is found but its not calibrated.