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 ...

Meet the Arduino Compatible RFID Reader Module. It can hold card data for up to five cards, takes seconds to program, and holds card data in EEPROM memory, which means that the cards are saved ...

The card reader can be used two further enhance both Arduino and Raspberry Pi projects and is now available from just C$21 or roughly £13 with worldwide delivery expected to take place during ...