MaerklinMotorolaDecoder
Simple Märklin Motorola Function/Signal/Magnet Decoder
This Arduino Project implements a simple Maerklin Motorola (2) MM2 Function/Signal/Magnet Decoder. It uses the modified library https://github.com/mmame/MaerklinMotorola which was originally written by Michael H. (Laserlicht) (thanks!)
The Decoder also works on ATTiny85 so you can build very cheap MM2 decoders ;-)
Example-Circuit to get required signal to ATTiny85:
