RFID Based Door Lock System

This project demonstrates a smart electronic door lock system using RFID technology and Arduino. Only authorized RFID tags can unlock the door, ensuring secure access control.

🔧 Features

• Allows access only to predefined RFID cards
• Uses servo motor to simulate door lock/unlock
• Displays access status on Serial Monitor
• Easy to modify for real-world door systems

📦 Components Used

• Arduino UNO
• RC522 RFID Reader Module
• Servo Motor
• RFID Tags
• Jumper wires

🛠️ How It Works

1. Scan an RFID tag.
2. If the tag is authorized, the servo rotates to unlock.
3. If unauthorized, access is denied.

🧠 Code

The Arduino sketch rfid_lock.ino includes:

• RFID tag validation
• Servo control logic
• Easy list of authorized tag UIDs

🔋 Circuit Diagram

Available in circuit_diagram/rfid_wiring.png
Connect RC522 via SPI interface.

🧪 Demo

Coming soon: add system_demo.jpg in /images

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✍️ Author

Sai Rathan Gangishetty