In the pre flight instructions.
- Roll the ArduCopter to the right. The right motor command should increase. The left motor command should decrease.
- Pitch the ArduCopter down (the front motor should be lower in position than the rear motor). The front motor command should increase. The rear motor command should decrease.
When I have the APM planner up, and showing Action/AC2 Sensor/Motors.
If I roll the frame I can see the motors change speed accordingly to correct the roll.
But, when I pitch the frame, the front and rear motors (3&4) don't move one bit.
Also, when the frame is level, motor 2 runs higher than the others.
When I monitor the sensors, using Action/AC2 Sensor/sensors they all appear to be working correctly. I can clearly see the pitch changing.
Any clues on what to look at?