I built a quad with 4x EMAX RS2205 motors with 4s battery and 5" bullnose props. I am carrying an APM mini.
Total weight of 500g and a thrust of +3kg makes it quite powerful - especially when I get my hands on the RS2205S type...
This makes it a bit hard to tune and to do autopilot missions, and it makes it scary to fly aswell since i'm a beginner.
The question, is there a way in APM to reduce and rescale the max PWM sent to the ESC's?
This should make it so that the maximum motor speed is reduced..
p.s. I don't really want to buy a 3S battery, which would be a good option aswell.
Reducing max speed is via MOT_SPIN_MAX. You can get some expo in the throttle by tweaking MOT_THST_EXPO. Not sure what the best values you're looking for, but I'd start there.
As you mentioned, 3S would help, or perhaps smaller / less aggressive props
Thanks! I will try this out.