Reply To: Sparkfun Pro micro not receiving

[Anonymous]

I only have one way communication as I use a 1/4 inch stereo plug as a slipring between the two sending +12v, -12v, and signal from tx on arduino A to rx on arduino B have always used  unos or nanos for both but the newer light sets we are using for B have a built in socket for a smaller arduino and used to come with a arduino pro mini which worked fine but now come with the Sparkfun Pro micro (not the same as the arduino micro, I haven’t tried that one yet) which doesn’t. It uses the ATmega32U4 chip, maybe its not compatible?