Smart Home Security System with Fire and Gas Detection

Advanced Smart Home Security System with fire and gas detection. Ensure safety with human detection, alarms, and Bluetooth control.

Aug 28, 2025 - 17:52
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Smart Home Security System with Fire and Gas Detection
Smart Home Security System with fire and gas leak detection for safe and modern living.

Smart Home Security System with Fire and Gas Leak Detection

The Smart Home Security System Project is an innovative solution designed to ensure safety and automation in modern living spaces. Developed using Arduino Nano and a combination of intelligent sensors, this project offers reliable detection of human presence, fire hazards, and gas leaks. Integrated with Bluetooth control, alarms, and LED indicators, it provides an all-in-one safety system for homes, offices, schools, and small industries. Available at Bigyan Project (বিজ্ঞান প্রজেক্ট), this project is perfect for students, researchers, and anyone interested in smart automation and security.

Product Overview

This Smart Home Security System combines three essential safety mechanisms: human detection, fire detection, and gas leak detection. It is designed to function as both a security system and a smart automation project, providing real-time alerts and preventive measures. The project uses an Arduino Nano microcontroller to process sensor inputs and control outputs such as alarms, LEDs, and Bluetooth communication. Its structure is built using durable PVC board and slim 22AWG wiring for stable connections. This makes it both a practical science project and a functional home automation device.

Product Specifications

Human Detection HC-SR04 Ultrasonic Sensor
Fire Detection 4-Pin Flame Sensor
Gas Leak Detection MQ2 Gas Sensor
Control HC05 Bluetooth Module
Microcontroller Arduino Nano
Power TP4056 Type-C Charging Module
Indicators 3mm Green LED (Security Mode), 5V Buzzer (Alarm)
Switch 6-Pin Slide Switch (On/Off)
Structure 5mm Plastic PVC Board
Wiring 1.6mm Slim 22AWG Cable

Features

  • Integrated human detection, fire detection, and gas leak detection
  • Bluetooth smartphone control using HC05 module
  • Security mode LED indicator and loud buzzer alarm for instant alerts
  • Arduino Nano based automation for efficient processing
  • Durable PVC board structure for long-lasting performance
  • Simple wiring with slim 22AWG cable for clean connections
  • Rechargeable power system using TP4056 Type-C module
  • Suitable for science fairs, DIY electronics, and practical home use

Applications / Use Cases

  • Smart home security and safety monitoring
  • Science fair projects and educational demonstrations
  • Office and laboratory safety systems
  • DIY electronics and Arduino-based projects
  • Small industrial setups requiring fire and gas monitoring

User Guide / How to Use

To operate the Smart Home Security System:

  • Connect the system to power using the TP4056 charging module
  • Switch on the system using the 6-Pin Slide Switch
  • Pair the HC05 Bluetooth module with your smartphone for control
  • Activate security mode; the green LED will turn on
  • When human movement, fire, or gas leak is detected, the buzzer alarm will activate
  • Control and monitor system functionality directly from your smartphone

Frequently Asked Questions (FAQs)

  • Q: What is the power source of this system?
    A: The system uses a TP4056 Type-C charging module with rechargeable batteries.
  • Q: Can this project be used for real home safety?
    A: Yes, it is designed for small-scale home and office environments, but it is also an excellent educational science project.
  • Q: Is smartphone control available?
    A: Yes, the HC05 Bluetooth module allows wireless smartphone control.
  • Q: What kind of sensors are included?
    A: HC-SR04 ultrasonic sensor for human detection, MQ2 for gas detection, and a flame sensor for fire detection.

Challenges and Considerations

  • Bluetooth control range is limited to a few meters
  • System performance depends on proper wiring and assembly
  • Requires basic knowledge of Arduino programming for customization
  • Gas detection accuracy may vary depending on sensor calibration

Compatibility

  • Works with Arduino Nano and similar microcontrollers
  • Compatible with Android smartphones for Bluetooth control
  • Supports rechargeable lithium batteries
  • Can integrate with additional Arduino-based sensors

Future Enhancement Options

  • WiFi or IoT integration using ESP8266 or ESP32 modules
  • Mobile app development for advanced control
  • Cloud data storage for security alerts
  • Camera module integration for live monitoring
  • Additional sensors for temperature and humidity monitoring

Benefits

  • All-in-one smart safety system combining multiple detections
  • Enhances security in homes, schools, and offices
  • Educational value for students learning Arduino and IoT
  • Cost-effective and easy to assemble using common components
  • Supports DIY customization for various science and tech projects
  • Backed by বিজ্ঞান প্রজেক্ট (Bigyan Project) for quality components and support

Intro / Lead Paragraph

A group of young innovators from বিজ্ঞান প্রজেক্ট (Bigyan Project) have developed a Smart Home Security System with fire and gas detection. This project aims to improve home safety by combining modern technology with affordable DIY electronics.

Background Context

With the increasing number of household fire accidents and gas leaks, there is a growing need for affordable safety systems. Traditional smart home security solutions are often expensive and complex, making them difficult to implement in schools, small offices, and households. This project bridges that gap by creating a low-cost, student-friendly, and practical solution that addresses safety concerns while promoting learning in electronics and automation.

Project Details

The Smart Home Security System integrates human detection, fire detection, and gas leak detection in a single setup. Built around an Arduino Nano, it uses an HC-SR04 ultrasonic sensor for motion, a flame sensor for fire detection, and an MQ2 sensor for gas leak detection. An HC05 Bluetooth module allows smartphone control, while LED indicators and a buzzer provide instant alerts. According to the student team, “We wanted to design a project that is not only educational but also has real-world value. This system can help protect families while teaching students about IoT and smart automation.”

Research / Innovation Angle

This project stands out by integrating three different safety mechanisms into one compact system. Unlike traditional security setups, it combines low-cost components with open-source Arduino programming, making it accessible for both students and DIY enthusiasts. The project demonstrates how cost-effective sensors and microcontrollers can be used to replicate functionalities found in expensive smart home systems. It also opens the door for further IoT development, such as remote monitoring and data logging.

Impact and Applications

The Smart Home Security System has wide applications in everyday life. It can be used in homes to detect intrusions, fire hazards, and gas leaks before they become critical. Schools and colleges can adopt it as a practical science project to teach students about electronics and real-world safety problems. Small businesses and offices can also use it as a basic safety system. In the future, the system can be upgraded with WiFi and IoT technology to expand its usability for smart city initiatives and industrial monitoring.

Quotes & Voices

Student Team: “We believe innovation should be both affordable and impactful. This project shows how simple components can create meaningful safety solutions.”

Teacher/Mentor: “Projects like these inspire students to think beyond textbooks. They are not only learning Arduino programming but also solving problems that affect communities.”

Industry Expert: “The combination of fire, gas, and human detection in one system is impressive. It reflects the potential of young innovators in shaping the future of smart home technology.”

Conclusion

The Smart Home Security System Project is a prime example of how student-led innovation can contribute to society. By addressing safety challenges with cost-effective technology, it provides a practical tool for households while promoting STEM education. Future improvements may include IoT integration, mobile applications, and AI-based monitoring. As young innovators continue to push boundaries, projects like this from বিজ্ঞান প্রজেক্ট (Bigyan Project) prove that science and creativity can go hand in hand to build a safer world.

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Shantonu-Acharjee Hi, I'm Shantonu Acharjee — an electronics student, Python developer, and PCB designer. I’m the founder of Bigyan Project, where I lead the creation of innovative robotics and tech solutions for students, educators, and hobbyists since 2018.