is then displayed as a text based RFID tag. If you're interested, you can check out the above video showing the board at work. Bjorn demonstrates bringing the phone close to the board and getting ...

This iteration requires connection to a computer to send the tag ID information to the microcontroller. In the video after the break it looks like he’s using a DIY RFID reader to test this.

RFID tags are great little pieces of technology, but unfortunately, the combination of paper, metal, and silicon means they are as bad as some modern pregnancy tests — single-use electronic ...