Project Overview and Description
An RFID door lock system using Arduino is an electronic access control system that unlocks a door when a valid RFID card or tag is scanned. It uses an Arduino microcontroller (such as Arduino Uno), an RFID reader module (like MFRC522), RFID cards/tags, and an electronic locking mechanism such as a servo motor or solenoid lock. When an RFID card is placed near the reader, the reader detects the card’s unique ID and sends it to the Arduino. The Arduino compares this ID with a list of authorized IDs stored in its memory. If the ID matches, the Arduino activates the lock mechanism to open the door. If the ID is not recognized, access is denied, and a buzzer or LED may indicate rejection. This system is commonly used in homes, offices, and labs because it provides secure, keyless, and easy-to-manage access control.