Rc1_trim value changes after every operation in skid_steering mode

ArduRover Rover 3.0
1

Hi,
I want to drive my rover on a straight line in manual mode with skid_steering. I am using an apm 2.6, turnigy 9xr and 2 brushed dc motors.
In mission planner:
SKID_STEER_IN=1
SKID_STEER_OUT=1
My 1st motor connected at 1st pin of apm and 2nd motor connected at 3rd pin of apm. I am also using dc motor driver like this

For straight driving i have to get same pwm from apm’s 1st and 3rd pins. But after each operation I noticed that RC1_TRIM value has changed.

What am I doing wrong? Is there any idea?

2

@gray03,
Why do you have both SKID_STEER_IN and SKID_STEER_OUT set to 1?.
Regards,
TCIII AVD

3

I’ve read it from documents.
What are the ideal settings?
Can you help me please?
Thanks…

4

@gray03,
No mixing in either the R/C transmitter or the ESCs.
Only SKID_STEER_OUT should be set to 1
Regards,
TCIII AVD

5

Thank you. I am going to test it immidiately.