Im modifying an RC car to make it GPS driven but I want to leave the existing circuit on so if something goes wrong I switch it back to normal. Is it possible to just make a double pole change over switch on the battery? And what about some back emf from the motors,will they damage the other circuits?
Hmm yes,Im thinking to just switch off the control box and bypass it with the other,trying to use the same PWM for the servos and the existing H-bridge for the main motor. The RC model has just two servos for the steering and two dc motors connected trough an H-bridge so there aren't any other sensors. I try and let you know