Thanks, I’ve connected the board to the LM-4 to control remote couplers on my engines and now I want to control the remote couplers on a boxcar.
I have to use the accessory project program, which is only available on the LM-3 and I’m thinking the connections will be the same. I’ll be using a 5v regulator to power the servos, because the LM-3 doesn’t have a 5volt tap.