I am relatively new to arduino micro and completly new to the subject of reading something else then HIGH or LOW from a pin. I have to read from an rfid-reader which is connected to pin 4, which should be the TX pin if i got that right. I have to compare those readings to constants and then, if one of them matches to one of the 2 constants. led's on the pins 8 and 10 should light, depending on which one was matching. The part i would need help with is the reading of the rfid uid from the pin. I am searching the board for like 2 hours now and i didn't find anything. It would be really nice if you could give me a hint how i should do that.
Best regards Nodua