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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@Gordon
I have now added a module to handle simple NFC/RFID comms:
http://www.espruino.com/PN532
So just a few lines and 4 wires, and you can be reading RFID tags...