Solenoid Door Lock System

Table of Contents

1. Introduction
2. Components Required
3. Components Overview
   • 16x2 LCD Display
   • LCD Display Module
   • EM-18 RFID Reader Module
   • Solenoid Door Lock
4. Setup and Usage
   • Hardware Connections
   • Software Implementation
   • Testing and Deployment
5. License
6. Conclusion

Introduction

This project involves creating a solenoid door lock system using an EM-18 RFID reader and a keypad. The system provides enhanced security and controlled access using RFID cards and a keypad.

Components Required

1. 16x2 LCD Display
2. LCD Display Module
3. EM-18 RFID Reader Module
4. Solenoid Door Lock
5. Relay Module
6. Arduino Board
7. 3x3 Keypad

Components Overview

16x2 LCD Display

• Description: Displays up to 32 characters on two lines.
• Operating Voltage: 4.7V to 5.3V.
• Pixel Resolution: 5x8 per character.

LCD Display Module

• Description: Detachable module for easy replacement.
• Features: Includes potentiometer for brightness control.

EM-18 RFID Reader Module

• Operating Frequency: 125 KHz.
• Interface: UART communication with microcontrollers.

Solenoid Door Lock

• Description: Electromechanical device controlling access through electromagnetism.

Setup and Usage

Hardware Connections

1. LCD Display: Connect the 16x2 LCD display to the Arduino, ensuring correct pin alignment.
2. RFID Reader: Interface the EM-18 RFID reader with the Arduino using UART pins.
3. Solenoid Lock: Connect the solenoid lock to a relay module which is controlled by the Arduino.
4. Keypad: Attach the 3x3 keypad to the Arduino for input.

Software Implementation

1. Arduino Code: Write the code to manage RFID reading and keypad input.
2. Control Logic: Program the Arduino to control the solenoid lock based on authorized RFID tags and keypad codes.

Testing and Deployment

1. System Testing: Test the system by scanning RFID tags and entering keypad codes.
2. Deployment: Deploy the system for controlled access to secure areas.

License

This project is licensed under the MIT License. See the LICENSE file for details.

Conclusion

This project provides a secure and efficient way to control access using a combination of RFID and keypad authentication.

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For detailed code and schematic diagrams, please refer to the repository files.