A U.K. firm has developed an on/off “switch” for RFID cards that could protect cardholders from being hacked. The cardholder activates the RFID transmission by squeezing the card between his thumb and ...

Researchers at the University of Pittsburgh Swanson School of Engineering have made cards that have a type of on and off switch. The NFC or RFID circuits are disconnected when in your wallet, and ...

[Jason] really wanted to build an RFID controlled garage door opener and decided to turn to Arduino to get the job done. For someone who’s never worked with an Arduino before, he really seemed to know ...