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 discontinued, replaced by StrongLink SL018

RFIDuinoPosted by marc 2010-04-02 22:54
The ready-made StrongLink SL018 Mifare RFID reader module is a more cost-effective solution. It can be ordered online from StrongLink in Beijing, China, and you will have it in a matter of days.


I wrote a simple Arduino sketch for reading tag IDs. It also works with the smaller sized SL030, which runs at 3.3V. A complete Arduino library for reading and writing data sectors on Mifare cards is also available.

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