NFC library for Arduino

This is an Arduino library for PN532 to use NFC technology.
It is for NFC Shield, Xadow NFC and Grove - NFC.

Features

• Support I2C, SPI and HSU of PN532
• Read/write Mifare Classic Card
• Works with Don's NDEF Library
• Communicate with android 4.0+(Lists of devices supported)
• Support mbed platform
• Card emulation (NFC Type 4 tag)

To Do

• To support more than one INFO PDU of P2P communication
• To read/write NFC Type 4 tag

Getting Started

• Easy way

  1. Download zip file and extract the 4 folders(PN532, PN532_SPI, PN532_I2C and PN532_HSU) into Arduino's libraries.
  2. Download Don's NDEF library， extract it into Arduino's libraries and rename it to NDEF.
  3. Follow the examples of the two libraries.

• Git way for Linux/Mac (recommended)

  1. Get PN532 library and NDEF library

      cd {Arduino}\libraries  
      git clone --recursive https://github.com/Seeed-Studio/PN532.git NFC
      ln -s NFC/PN532 ./
      ln -s NFC/PN532_SPI ./
      ln -s NFC/PN532_I2C ./
      ln -s NFC/PN532_HSU ./
      ln -s NFC/NDEF ./

  2. Follow the examples of the two libraries

Contribution

It's based on Adafruit_NFCShield_I2C.
Seeed Studio rewrite the library to make it easy to support different interfaces and platforms.
@Don writes the NDEF library to make it more easy to use.
@JiapengLi adds HSU interface.
@awieser adds card emulation function.