Luke
After the param is changed and lipo reattached the lights on the m4 do signal differently than usual then the motors do seem to pulse for a bit. After its all over the M4 LEDs return to normal. I never see the motors actually rotate during the calibration sequence. I was under the impression the motors would run at full rpm for a bit. I was also hesitant to attach the M4 to my laptop with QGC via usb while a lipo was also attached. Is it ok to have a lipo attached and QGC monitoring the calibration via usb? It would be helpful to observe the calibration via QGC.
Yes, you can power the M4 with both the USB and lipo.
No, the motors do not spin when calibrating the ESCs.
Larry