Silicon-based RFID tags are already used in passports ... would allow for every item in a supermarket to have a unique identification code -- including information as to how long that product ...

Her code allows you to configure the type and number of RFID cards required to trigger one of the Arduino’s digital pins, which usually would be connected to a relay to fire off whatever device ...

It uses Touchatag RFID hardware to control iTunes. The concept is very similar to the standalone Arduino jukebox we ... really caught our eye is the QR-code reader concept which [Janis] hopes ...