Automated-Smart-Door-Lock-Using-Arduino

An IoT-based Smart Door Lock System developed using Arduino Uno, RFID technology, Servo Motor, and I2C LCD Display. The system replaces traditional keys with RFID-based authentication, providing enhanced security and contactless access control.

Features

• RFID-based user authentication
• Automatic door locking and unlocking
• Unauthorized access prevention
• LCD status display
• Low-cost IoT security solution
• Easy hardware integration

Technologies Used

• Arduino Uno
• RFID RC522 Module
• Servo Motor
• I2C LCD Display
• Embedded C/C++
• Arduino IDE

Working

1. User scans RFID card/tag.
2. RFID reader captures UID.
3. Arduino verifies the UID against authorized records.
4. If authorized, the servo motor unlocks the door.
5. LCD displays "Access Granted".
6. After a predefined time, the door automatically locks.
7. Unauthorized cards display "Access Denied".

Applications

• Smart Homes
• Offices
• Laboratories
• College Classrooms
• Restricted Access Areas

Future Enhancements

• Mobile App Integration
• WiFi/Bluetooth Connectivity
• OTP Verification
• Cloud-Based Access Logs
• Face Recognition Integration