I'm still confused on
why the diode is there, and in my second post i explained that there where two of those lights with a 2.7v output. If one turns on makes the motor go one way and if the other one turnes on it makes the motor go the other way. So is the diode configuration across the motor the same? Or will I just put two of them just the oposite way. The lights will not be on at the same time so that should work right?
So if I use the tip31 which I looked up the data sheet for and will handle 3A. what resistor should I use on the base and why and how did you come up with that. thanks for that suggestion I want this to be as compact as possible.
sorry for typing so much.