RFID sniffer

RFID sniffer

About this project

RFID is everywhere. Use the easy to build RFID sniffer to find out if objects are tagged.
The RFID sniffer is a simple analog electronic circuit which can detect the presence of 13.56 MHz RFID tags. These tags are commonly used in all kinds of plastic cards like access badges, bank cards, library cards, loyalty cards and so on. Also many other objects may carry RFID tags without you knowing it. Books, toys, and even clothing might be tagged. Carrying tagged objects with you can reveal your identity or whereabouts to anyone equipped with the appropiate tools to read RFID tags.
The RFID sniffer helps you identify which objects are tagged, and which are not.

RFIDuino is here!

RFIDuinoPosted by marc 2009-03-31 21:44
This morning I received my first batch of RFIDuino circuit boards. I quickly assembled one to see if my zero-defect design philosophy still holds... and yes, it did!


Even without tweaking the component values, I got clear readings from several types of Mifare tags I have lying around (1K, 4K and UltraLight). Shown here is a Arduino Diecimila next to my RFIDuino, and a ikTag, which is a Mifare 1K RFID tag.
The RFIDuino plugs upside-down onto the Arduino, and has its LEDs mounted through-hole, literally.


In the next few days I will do some more testing and finalize the kit contents. RFIDuino will be in my web shop very soon! I will offer the kit for €45 plus €5 for shipping.
I will also write up some more elaborate code examples, possibly a full-fledged Arduino library, to make life easier for you RFID coders :)

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