很强的射频卡reader源代码，支持ISO14443A、ISO14443B等卡片，支持Mifare卡，desfire 4卡，内嵌入3DES算法,A strong source of RF card reader, support ISO14443A, ISO14443B such as card, Mifare card support, desfire 4 cards, embedded 3DES algorithm

本代码包括了RC522的的大全，包括了原理图，原代码，还有各种说明书-The code includes the RC522 of the Daquan, including schematics, source code, and various brochures