Security System on FRDM-K66F

This repository contains the code for a security system implemented on the NXP FRDM-K66F development board. The system integrates various hardware components to simulate a basic home security setup, featuring motion detection, keypad input, and LCD display for user interaction.

Table of Contents

• Overview
• Features
• Hardware Requirements
• Software Requirements
• Installation and Setup
• Usage
• Project Structure
• Contributing
• License

Overview

The security system is designed to demonstrate embedded systems programming and hardware integration using the FRDM-K66F board. It serves as a practical example for students and enthusiasts interested in embedded security applications.

Features

• Motion Detection: Utilizes a PIR motion sensor to detect movement.
• Keypad Input: Allows users to input a security code to arm or disarm the system.
• LCD Display: Provides real-time feedback and system status updates.
• Alarm Activation: Triggers an alarm when unauthorized access is detected.
• User Authentication: Implements code verification for enhanced security.

Hardware Requirements

• NXP FRDM-K66F Development Board
• PIR Motion Sensor
• 4x4 Matrix Keypad
• 16x2 Character LCD Display
• Buzzer or Alarm Module
• Breadboard and Jumper Wires
• USB Cable for programming and power supply

Software Requirements

• MCUXpresso IDE or any compatible IDE for ARM Cortex-M processors
• Kinetis SDK for board support packages and drivers
• USB Drivers for FRDM-K66F board communication
• Git for cloning the repository (optional)

Installation and Setup

1. Clone the Repository

   git clone https://github.com/InderParmar/Security-System-FRDM-K66F.git

2. Import the Project into Your IDE

   • Open your IDE (e.g., MCUXpresso).
   • Select File > Import.
   • Choose Existing Projects into Workspace.
   • Browse to the cloned repository and import the project.

3. Hardware Connections

   • PIR Sensor: Connect to the designated GPIO pins for motion detection.
   • Keypad: Connect rows and columns to the specified GPIO pins for input handling.
   • LCD Display: Connect data and control lines according to the wiring diagram.
   • Buzzer: Connect to a GPIO pin configured for output to act as an alarm.

   Refer to the docs/wiring_diagram.png for detailed connections.

4. Build and Flash the Firmware

   • Compile the project within your IDE.
   • Flash the compiled binary to the FRDM-K66F board using a USB connection.

Usage

• System Initialization

  Upon powering up, the system initializes all peripherals and displays a welcome message on the LCD screen.

• Arming the System

  Enter the predefined security code using the keypad to arm the system. The LCD will display an "Armed" status.

• Motion Detection

  When armed, the PIR sensor monitors for any motion. Detection of movement triggers the alarm.

• Disarming the System

  Before entering the secured area, input the security code to disarm the system. The LCD will display a "Disarmed" status.

• Alarm Reset

  If the alarm is triggered, enter the security code to reset the system.

Project Structure

• /src: Source code files.
• /include: Header files.
• /docs: Documentation and wiring diagrams.
• /lib: External libraries and dependencies.
• /README.md: Project documentation.

Contributing

Contributions are welcome! Please follow these steps:

1. Fork the repository.
2. Create a new branch for your feature or bug fix.
3. Commit your changes with clear messages.
4. Submit a pull request detailing your changes.

License

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