The use of Radio Frequency IDentification (RFID) technologies is growing. Many different applications are implemented in various sectors, and used for very different purposes. RFID enables wireless ...

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 ...

SAN JOSE, Calif.--I'm staring at a table covered in circuitry, a solderless "breadboard," a bunch of wire, an antenna, and some other components--all the things I've been given to build a rudimentary ...