Yaw goes crazy during missions

Hi guys. I need a little help.

My drone rotates (I guess always CCW) during missions. The channel 4 input is exaclty at 1500, but output drops to around 1200-1300. There is one log + two screens of, what I think is crucial.
Please, help… :cry:

Here is an Auto Analysis of your log file:

Size (kb) 1836.6015625
No of lines 23625
Duration 0:08:01
Firmware Version
Firmware Hash
Hardware Type
Free Mem 0
Skipped Lines 0

Test: Autotune = NA -
Test: Balance/Twist = NA -
Test: Brownout = GOOD -
Test: Compass = FAIL - COMPASS_OFS_X not found
Test: Dupe Log Data = GOOD -
Test: Empty = GOOD -
Test: Event/Failsafe = GOOD -
Test: GPS = GOOD -
Test: IMU Mismatch = UNKNOWN - No IMU log data
Test: Parameters = GOOD -
Test: PM = NA -
Test: Pitch/Roll = NA -
Test: Thrust = NA -
Test: VCC = GOOD -

Looks like you are missing a COMPASS_OFS_X calibration value which could contribute to your yaw issue.


So you say, that recalibrating the compass should do the work. Am i right?

I’ve recalibrated the compass and it did’t help at all. Do you have any other sugestions?