Hello from Poland. My name is Przemek, 33 years old, ham radio operator (SQ6PNO) and enthusiast of new technologies. Today I began the construction of the rotator (v2.0). I buy opto-endstops and currently I print the first parts.
First question, my opto-endstops don’t have breakout board, where I find pcb layout for this (I know, I know this is simple things but I’m not electronics guy.)
Stay tuned for the next episode 
Here are the PCB project files for the endstop: https://github.com/satnogs/satnogs-rotator-controller/tree/master/PCB/SatNOGS_EndStop