IoT Based Gas and Fire Alarm System with Smart Safety

Smart IoT Gas and Fire Detection System with Mobile Alerts | Bigyan Project

The Smart IoT Gas and Fire Detection System by Bigyan Project is an innovative educational kit designed for students, schools, and science fairs to demonstrate the power of Internet of Things (IoT) in real-life safety automation. This system detects gas leaks and fire using advanced sensors like the MQ-2 Gas Sensor Module and a Flame Sensor Module. When a hazard is detected, the system instantly sends an alert notification to your mobile via the Blink IoT app, activates a loud 5V buzzer alarm, starts a cooling fan to remove harmful gas, and operates a MG995 Metal Gear Servo to turn off the gas regulator automatically. Powered by 18650 rechargeable batteries and managed by an ESP8266 Wi-Fi microcontroller, this system provides smart protection even during power outages. Perfect for STEM learning, school exhibitions, and IoT experiments, it helps students understand real-world IoT applications in safety and automation.

Product Specifications

Features

• Detects gas leakage and flame in real-time using advanced sensors
• Sends instant alerts to mobile devices via Blink IoT app over Wi-Fi
• Automatic alarm and ventilation system activates during danger
• MG995 servo motor automatically closes the gas regulator knob
• Battery backup ensures continued operation during power failure
• Simple wiring and modular design ideal for student learning
• Type-C charging support for easy recharging using phone charger
• Durable PVC board frame for safe and organized installation
• Perfect for school, college, and university science exhibitions
• Educational kit proudly developed by Bigyan Project

Applications / Use Cases

• Science fair demonstration of IoT safety technology
• STEM learning and IoT project experiments for students
• Educational model for fire and gas leakage detection system
• Home automation and safety prototype project
• Engineering and electronics lab demonstrations

User Guide / How to Use

• Step 1: Power on the system using the main SPST switch.
• Step 2: Connect the ESP8266 to Wi-Fi and link it with your Blink IoT app.
• Step 3: Place the MQ-2 gas sensor and flame sensor near the test area.
• Step 4: Simulate gas leakage using a small LPG source (in a safe environment).
• Step 5: When gas or flame is detected, an alert will appear in the app and the buzzer will start.
• Step 6: The fan will activate to clear the gas, and the MG995 servo will automatically turn the regulator knob to the off position.
• Step 7: Recharge the system using the Type-C charger when battery is low.

Frequently Asked Questions (FAQs)

• Q: Can I use this project for real home gas safety?
  A: It is designed for educational and demonstration purposes. For real-world use, certified safety equipment is recommended.
• Q: Does the system work without Wi-Fi?
  A: The alarm, fan, and servo still work locally even without Wi-Fi, but notifications require internet connectivity.
• Q: How long does the battery last?
  A: It depends on usage; typically 3–5 hours during active monitoring, longer in standby.
• Q: Can I modify the project or add more sensors?
  A: Yes, you can easily add temperature, smoke, or motion sensors using the ESP8266’s GPIO pins.
• Q: Does it support OTA updates?
  A: Yes, you can integrate OTA firmware updates using the Arduino IDE and ESP8266 libraries.

Challenges and Considerations

• MQ-2 sensor requires proper calibration and warm-up for accurate results
• Servo motor may draw high current; use a proper 5V power regulator
• Ensure safe testing environment when demonstrating gas leakage
• System should not be used as a certified home safety device
• Proper battery management and charging precautions are essential

Compatibility

• Compatible with ESP8266 NodeMCU or similar development boards
• Supports Blink IoT app on Android and iOS
• Works with 5V components such as buzzer, fan, and servo
• Rechargeable using any standard Type-C mobile charger

Future Enhancement Options

• Add temperature and humidity sensors for extended environment monitoring
• Integrate gas solenoid valve instead of servo for enhanced safety
• Include LCD display for real-time gas concentration levels
• Enable cloud data logging and event history tracking
• Integrate voice assistant support for alerts and commands

Benefits

• Practical IoT learning experience for students and beginners
• Comprehensive real-time monitoring with both local and remote alerts
• Teaches core concepts of sensors, microcontrollers, and automation
• Helps students build confidence in IoT project development
• Exclusive educational product developed by Bigyan Project for science learning

Conclusion

The Smart IoT Gas and Fire Detection System from Bigyan Project is more than just an electronic kit—it’s a complete educational platform for learning about IoT, automation, and safety systems. Designed to simulate real-world gas and fire detection, it offers an engaging and hands-on experience for students and innovators. With smart alerting, automatic safety actions, and easy setup, this project stands out as an excellent choice for science exhibitions, academic projects, and IoT demonstrations.

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