Arduino-RFID-Door-Lock-System

An automated RFID-based physical security system engineered with Arduino UNO. Features a MFRC522 sensing interface for UID-validated entry and a servo-actuated locking mechanism for hands-free access control

RFID Smart Access Control System

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  |                                                |
  |          Arduino RFID Access Control           |
  |________________________________________________|
           |                                |
  [ RFID SCANNER ]                  [ SERVO MOTOR ]
  |    (MFRC522)   |                  |  (Lock Mech)  |
  |   __________   |                  |      ____     |
  |  |  ( (●) ) |  |       ____       |     /    \    |
  |  |   SCAN   |  |------|    |------|    | STOP |   |
  |  |   HERE   |  |      |UNO |      |     \____/    |
  |  |__________|  |      |____|      |      _||_     |
  |________________|        ||        |_____|____|____|
                            ||
                    [ BUZZER / LEDS ]
                     (Status Indicators)

      Key:   [*] Authorized Tag -> Servo Rotates (Open)
             [!] Unauthorized   -> Buzzer Alarms (Locked)

Project Overview

This project presents the design and implementation of a secure RFID-based access control system using Arduino UNO and MFRC522 RFID module.

The system grants access only to authorized RFID cards and controls a servo motor to simulate a door locking mechanism.

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-----------------------------------ben khira ahmed bader eddine-------------------------------------------------

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Hardware Components

• Arduino UNO
• MFRC522 RFID Reader (SPI)
• SG90 Servo Motor
• Buzzer (optional)
• RFID Cards / Tags
• Breadboard & Jumper Wires

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System Architecture

1. RFID card is scanned
2. Arduino reads UID
3. UID is compared with authorized list
4. If matched → Door unlocks
5. If not matched → Access denied alert

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Features

• Multi-card authentication
• Automatic re-lock after timeout
• Unauthorized access detection
• Modular structured code
• Expandable system design

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Technologies Used

• C++ (Arduino IDE)
• Embedded Systems Programming
• SPI Communication Protocol
• Servo Motor Control

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-----------------------------------ben khira ahmed bader eddine-------------------------------------------------

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Future Improvements

• EEPROM-based dynamic card registration
• LCD display integration
• IoT remote monitoring (ESP32)
• Access logging system

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-----------------------------------ben khira ahmed bader eddine-------------------------------------------------

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Author

Ahmed Bader Eddine
Bachelor Graduate
GitHub: https://github.com/BenkhiraAhmedBaderEddine1