scanwidget: Using an AVR as an RFID tag

This is one of the more impressive electronics hacks I’ve seen in a while: it uses an Atmel microcontroller as a replacement for an RFID chip in a very novel way (energy transmitted from the RFID reader powers the chip directly, no power on the microcontroller, so it is passive just like the RFID devices are). Some neat ideas:

scanwidget: Using an AVR as an RFID tag

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