Adafruit PN532 NFC/RFID Controller Shield for Ardunio This controller shield is the Adafruit PN532 breakout board which has been remastered into the perfect shield. A great tool for any 13.56MHz RFID or NFC application. The Adafruit NFC shield uses the PN532 chip-set and is what is embedded in almost every phone or device that does NFC. This particular model is highly reliable and excellent quality. This board/chip uses I2C 7-bit address 0x48
2.1" (53.3 mm) x 4.7" (117.7 mm) and 0.425" (1.1 mm) thick