RFID Access Control System

A smart access control system prototype built into a physical diorama, featuring multiple RFID scanners and automated door lock control.

Overview

This project implements an RFID-based access control system designed for demonstration and prototyping purposes. The system is integrated into a physical diorama, providing a visual and interactive representation of how RFID access control works in real-world applications.

System Components

Hardware

• RC522 RFID Scanners (x4) - RFID card readers positioned on the diorama
• 5V Relay Module - Controls the door lock mechanism
• Green LED - Access granted indicator (physical)
• Red LED - Access denied indicator (physical)
• Door Lock Mechanism - Electromagnetic or solenoid lock

Software

• File-based storage system for authorized RFID card data (local storage file)
• Access control logic with authentication validation (software controller)

How It Works

Workflow

1. Tap: A user taps an RFID card on one of the 4 RC522 scanners located on the diorama.

2. Verify: The system reads the card's unique identifier and checks it against the authorized IDs stored in a local file (memory/storage file).

3. Respond: The script processes the authentication and returns a response:

   • GRANTED - Card is authorized
   • DENIED - Card is not authorized

4. Actuate: Based on the response:

   • If GRANTED:
     • Physical green LED activates to indicate successful authentication
     • 5V relay triggers to open the door lock
     • Door remains unlocked for 5 seconds before automatically relocking
   • If DENIED:
     • Physical red LED activates to indicate failed authentication
     • Failed attempt is logged for security monitoring

Features

• Multi-Scanner Support: Four independent RFID scanners for flexible access point placement
• Visual Feedback: Physical LED indicators provide immediate visual confirmation of access status
• Automatic Relocking: Door automatically relocks after 5 seconds for enhanced security
• Access Logging: Failed access attempts are logged for security auditing
• File-Based Storage: Simple and portable data storage for authorized cards (local file)

3D Diorama

The project includes a physical 3D diorama model (3d Diorama.blend) created in Blender, which houses all the hardware components and provides a realistic demonstration environment.

License

This project is open source. Please refer to the repository for license details.

Contributing

Please see CONTRIBUTING.md for guidelines on how to contribute to this project.