Yesterday we had a strange behavior. We have upgraded one of our drone from 4.0.7 to 4.1.1 (as another is already flying this firmware without issue).
Then we made a test flight, and after EKF3 imu1 in-flight yaw alignment message the copter automatically yaw about 20°.
We did not make compass calibration, that’s the next step, but is that a must? the only difference is we use here3 on this drone…
Thank you for your help
Please update to ArduCopter 4.1.5, there is no need to re-calibrate the compass, unless the original compass calibration was not correctly done.
My guess is that you did not do the initial configuration correctly.
thank you for your reply, I forgot to mention that this drone was flying without this strange behavior before.
.bin log file from the flight you mentioned above using something like wetransfer.com
Please find the requested log.
Hi @amilcarlucas ,
Did you have time to look at the log? Did you notice anything obvious?