RFID tags can either be passive, active or battery assisted passive. The active or battery assisted passive tags will transmit an ID where as the passive RFID tags have to be powered via the reader.

I took a look at a cheap RFID reader for the arduino, the RF10-RC522 which can be purchased for around £5 and comes with 2 example RFID tags. The cards in the kit are passive.


It is possible to do RFID Card reading and writing on the Arduino and you can get a code samples from here: https://github.com/miguelbalboa/rfid or you can also find a guide on using the RFID cards with Arduino here: http://www.grantgibson.co.uk/blog/2012/04/how-to-get-started-with-the-mifare-mf522-an-and-arduino/

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  1. Hi Nick,

    This is really cool! Have you got any plans with this kit? I want to have a play with RFID. I played sqword the other day; I like it. Got any other projects lined up?



  2. At the moment no plans with the RFID stuff but I do have a few other projects lined up. Working on upgrading an old radio at the moment, should be adding some info about it soon! How about you?


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