I just received my RC522 RFID reader and made this simple Arduino access control system that uses the reader, a buzzer for the alarm and a relay shield for the security system. The relay can be used ...

As far as wireless technologies go, radio-frequency identification (RFID) is one of the oldest. Patented in 1983 by the late British inventor Charles Walton, RFID made it possible for new, ...

Don't carry RFID? You might be surprised; the short-range ID technology is currently found in everything from US passports to swipeless credit cards to public transit passes to World Cup tickets to ...

In the previous article, “The principles of RFID: Active Tags,” we discussed a classification of RFID tag called the active tag. Even though the active tag has many applications, it does not get as ...

The benefits of RFID item-level tagging are now common knowledge in the apparel industry, primarily for quick and accurate inventory taking, replacing what could take a whole team a day or two ...