Virtual Booth

This RFID door lock system is a microcontroller-based access control project that utilizes an Arduino Uno, an MFRC522 RFID reader, an I2C 16x2 LCD display, a servo motor, and a simple locking mechanism to provide secure, keyless entry. When powered on, the system initializes all components and displays a welcome message on the LCD. The MFRC522 RFID module constantly scans for nearby RFID cards or tags. When a tag is detected, its unique UID is read and compared with a pre-defined authorized UID stored in the Arduino code. If the tag matches, the LCD displays “Access Granted,” and the servo motor rotates to a specified angle (usually 90°) to unlock the door. After a short delay (e.g., 3 seconds), the servo returns to its original position (0°), relocking the door. If an unauthorized card is scanned, the LCD displays “Access Denied,” and the lock remains closed. This setup is compact, low-cost, and efficient, with real-time visual feedback and customizable access logic. Additional features like logging access attempts, using EEPROM for dynamic UID storage, or adding a buzzer for audio alerts can be easily integrated, making it suitable for smart homes, offices, and educational projects.