RFID Tag Detection with Arduino This project demonstrates how to detect RFID tags using an Arduino and an RFID-RC522 module. When an RFID tag is brought near the reader, the unique ID (UID) of the tag ...

Project Description A secure door lock system using Arduino Uno, RFID (MFRC522), and a 4x4 Matrix Keypad. Authorized users can unlock the door with either an RFID tag or a PIN code.

The MFRC522 requires a regulated 3.3v power supply, which is provided on the board, so that you don’t have to worry about it! – MFRC522 connection header: This is where the MFRC522 RFID reader ...