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 ...

Posted in Arduino Hacks Tagged access control, arduino, garage door, garage door opener, NFC, reddit, rfid ← Laser Etching Brings New Life To An IBM Keyboard Samsung NX300 Gets Rooted → ...

The device also keeps track of temperature and humidity. The entire system can be controlled via a web interface. The Arduino serves a web page that allows the user full control over the alarm.