● The NFC / RFID breakout base on PN532， which is the most popular NFC chip， and is what is embedded in pretty much every phone or device that does NFC
● It can pretty much do it all， such as read and write to tags and cards， communicate with phones (say for payment processing)， and act like a NFC tag
● If you want to do any sort of embedded NFC work， this is the chip you will want to use. The PN532 is also very flexible， you can use 5V TTL UART at any baud rate， I2C or SPI to communicate with it
● This chip is also strongly supported by libnfc， simply plug in an FTDI cable and use the FTDI serial port device to communicate - this lets you do NFC devive using any Linux / Mac / Windows computer
● Comes with: the PN532 breakout board including a tuned 13.56MHz stripline antenna， 0.1 inch header， 2 jumpers / shunts and a 4050 level shifter chip
● Can use SWITCH-0 and SWITCH-1 choosing UART， IIC or SPI interface

Frequently Asked Questions:
Q1. Why are these called "Arduino Compatible"?
A1. The Arduino group demanded us to remove their logos and rename these products so that they do not lead customers to believe they are the same units sold by Arduino
Q2. Are these 100% compatible with the "normal" Arduino's?
A2. Yes， they really are completely compatible with "normal" Arduino's. Build quality looks the same and everything (studio， library， tools， etc) just works
Q3. Are these actually original Arduino's， then?
A3. We can only officially answer we don't know