I was going to ask what a ferrites ring/bead was then I realised I took this random looking grey round thing off the esc->Rx wire when I did the opto mod. That it?
I was going to ask what a ferrites ring/bead was then I realised I took this random looking grey round thing off the esc->Rx wire when I did the opto mod. That it?
If you still have it, put it back on and move the wire away from the motor.