[](https://youtu.be/gTQmLkwnUxk) [YouTube video](https://youtu.be/gTQmLkwnUxk) RC522 RFID Module ...

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 ...

An Arduino Uno RFID access-control prototype that unlocks an electronic latch when a registered card is scanned. The firmware reads card UIDs through an MFRC522 RFID module, displays access status on ...

In this project, we build a security alarm using a laser detection system, a laser receiver sensor, a buzzer and an RFID-RC522 module. In this project, we build a security alarm using a laser ...