NFC/RFID Shield

A 13.56 MHz NFC and RFID shield built on the PN532 controller, which reads and writes MIFARE cards and tags and can also communicate with NFC-enabled phones. More capable than a simple RC522 reader: it supports card emulation and peer-to-peer modes as well as plain reading. Suits access control, attendance systems, contactless payment prototypes and inventory tracking. Reads and writes MIFARE Classic and Ultralight tags; Talks to NFC phones, not just cards; Selectable I2C or SPI interface; Onboard antenna, no external coil needed