Mini 3 slowly turns when hovering.

[David Smith]

Good morning, world. As my title says. When I fly and hover, the drone slowly rotates without any input from me. Meaning that I have to continue to correct it, to keep it staying on station. The rotation is always anti-clockwise. I have recalibrated the compass and fitted new props. I never fly in high winds either. And I never exceed the legal altitude. What can be causing this issue? Your advice would be really appreciated. Thanks, Guys. Dave in Suffolk, UK

 

[BossBob]

You probably calibrated the compass needlessly. Try recalibrating the remote control. There’s probably a bit of left of centre in the left stick. It might have been caused by storing with the sticks mounted.

 

[Felix le Chat]

Concur with the above. Check the Hall sensors (sticks) on the controller. It may be that the left stick is registering a very slight yaw input in one direction. Go through the controller calibration process a number of times.

 

[Exphantomflyer]

As BossBob says try a remote calibration and also do an IMU calibration

 

[BossBob]

I’d only do compass and imu calibrations IF the app called for them AND I’d eliminated all forms of interference. I’ve owned DJI drones for 7 years and done 1 compass calibration and 1 IMU calibration.

 

[Meta4]

I never fly in high winds either. And I never exceed the legal altitude.

Neither of those would have any detrimental effect on your drone.

 

[Cafguy]

Your Drone is acting as if the IMU is not Calibrated. The controller thing above is certainly worth a look and could actually be a thing but I think its an IMU calibration problem.

 

[slup]

Your Drone is acting as if the IMU is not Calibrated. ...

Not quite... symptomatic for a IMU in need of a calibration is usually drifting, and that in the approx. same direction (relative the AC), not a uncommanded yawing.

 

[David Smith]

HI Guys. Well, that did it. I recalibrated the controller, like so many said to do. Now she is as steady as a rock. Thanks, Dave in the UK.

 

[BossBob]

Hall sensors rarely wander. If the rc is stored with the sticks fitted and off centre you’ll weaken a spring over time so that physical centre no longer equals electrical centre hence the need to recalibrate.