The RFID Module adopts MFRC522 IC as the mian Chip ,which is a highly-integrated reader/writer IC for contactless communication at 13.56MHz. The MFRC522 reader supports ISO/IEC 14443 A/MIFARE Mode.
The MFRC522 supports following interfaces:
1、Serial Peripheral Interface
This Module uses SPI as the interface to the external board.