Quote:
Originally Posted by Munchskull
+5v goes to the power pin on the PWM terminals. The ground pin on the PWM terminal leads to a single LEDs positive side, then the negative side of and LED would lead to digital ground.
|
Are you expecting to power the LED using the ground current from the speed controller's PWM connection? That might work if the LED were connected in the other direction, and if the controller's optically-isolated input will still function with the extra LED's additional voltage drop in the circuit. But it can't work if the robot is disabled, and I can't see it telling you any more than what the LED on the speed controller already does.