Arduplane v3.7.1? If EKF_ENABLE = 1, EK2_ENABLE = 0, and AHRS_EKF_TYPE = 2, whats running inside?

Good point, may be I should email you my param file to check it.

All, reading through this thread, sounds like we are having similar issues on 3.7.1. We haven’t upgraded to 3.8 yet, as we were waiting for time to test it before using it on active aircraft. However, it is looking like EKF in 3.7 is an issue? I can try to disable, but I am curious if it has been confirmed that these issues were resolved in 3.8 stable?

Thanks!

@custeve
Altitude drift problem? We have test 3.8 stable for several flights, problem seems not been solved! And wired that Maxbotic ultrasonic rangefinder doesnot work well in 3.8!

I’m a newbie so dont shoot me please!!

“Warning
IMPORTANT: Do not set AHRS_EKF_USE = 1 unless you have performed an Accel and compass calibration. Failure to do so may result in an erratic flight path due to bad sensor data.”_

In MP 1.3.52.10 it’s set by default to 1

Could this be the/a problem? Does the above mean first set AHRS_EKF_USE to 0 do the Accel and Compass calibration and than set AHRS_EKF_USE 1 again?

greetings