Documentation for RFID Card Reader/Detector Module Kit
Arduino Demo:
Pin connection
Pin layout should be as follows (on Arduino Uno):
MOSI: Pin 11 / ICSP-4
MISO: Pin 12 / ICSP-1
SCK: Pin 13 / ISCP-3
SS: Pin 10 (ConfigurabRST: Pin 9 (Configurable)
RST: Pin 9 (Configurable)
Use Arduino library here, and example from the library
see the demo video here