we have a self constructed light weigth two axis gimbal with two Runcam Angle Micro cameras (120g in total) and SimpleBGC 32bit Tiny Revision B. One camera has a 25mm lens the other has the standard Runcam lens.
The Gimbal Controller is connected to a Pixhawk 2 over Serial 5 set to "Alexmos Gimbal Serial". Max / min Pitch is set to +9000 / -9000.
Now we have two problems:
When we lower the pitch to 90 °, the gimbal will overshoot and oscillate for over a minute until it settles. Same thing when we swing back to horizontal. I-Pitch as already at the max of 2.55.
The other Problem is that as long as the Serial is connected we have a light, slow jiggle on the pitch axis. The Pixhawk gets a clean signal from the receiver with only a variation of 1us.