I am trying to verify if my ESCs/motors are balanced. I did an ESC calibration and the copter seems to fly well.
ESC are ZTW Spider 30A opto. Motors are Sunnysky X3108S-720.
Checking the RCOU.Cx values from the latest 12 minute flight, mostly in AltHold mode (minimal changes of throttle) in relatively calm conditions, I get the following min/max/avg values:
I think that is fine, they will never be 100% the same
the flight controller is making adjustments there to keep it stable
this is one of the things that is checked in the analyze logs. Acceptable limits are on the docs wiki
but your lowest to highest is is a 17 variance, that is pretty good
Looks like you’re using oneshot with your ESC’s. The timing period for oneshot is much shorter than standard PWM which is why you’re seeing such a big difference between RCIN and RCOUT.
Even if you weren’t using oneshot, APM Copter’s automatic hover throttle learning would mean that mid-stick on your transmitter (~1500) wouldn’t mean you would see 1500 output to your ESCs. Instead you would see the PWM value required to give enough thrust to maintain a hover which varies depending on your motors / props / payload etc.
1.Check your frame, make sure the barycenter is at the right place.
2.Check KV number of your motors, make sure you are using the same. Same check to ESCs
3.Reset and re-program your ESCs
if you still face issue, exchange the motor and ESC with another arm’s