Desired yaw angle keeps drifting without Yaw input

ArduCopter
1

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image1919×1036 321 KB

Hi

On my quadcopter, the desired yaw keeps drifting when I do the pitch forward and pitch backward.

In the above image, red line is desired yaw changed by almost 30 degrees with yaw input being constant at 1500 PWM signal.

Even in guided & auto modes, the drone heading is not faced towards the next waypoint even thought the WP_YAW_BEHAVIOUR parameter is set to 2. Desired yaw keeps drifting in guided and auto modes too.

Visibily drone’s yaw doesn’t seem to change when hovering. Is the cause interference?

Sharing log files in this link here

2

RC3_TRIM is 1521

RC3_DZ is 20

your RC looks like it’s neutral point is 1500. The drone is seeing a very slight yaw input because the stick is outside of the trim position and dead zone.

Reset RC3_TRIM to 1500.

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