Plug the RFID module into the breadboard with enough space around it. Connect the VCC pin to the Arduino's 3.3V (not 5V), and ...

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 ...

[Will] has been hard at work on a replacement system for his Hackerspace’s RFID door lock. The original ... [Will] made the jump from an Arduino which has run the locks for the last three ...

[Jason] really wanted to build an RFID ... Arduino triggers a relay which can then be used to control just about anything. In this case, [Jason] plans to use it to control his garage door. The ...