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 ...

This project turns an Arduino Nano into a fully functional RFID reader/writer device that behaves like a real commercial RFID hardware unit. Instead of acting like a simple Arduino sketch, the ...

Arduino Keypad and RFID reading software for HID iClass, PivClass, and MultiClass/SE model readers. Modified to contain scaffolding for keypress recognition. If the bits in this software's keypress ...