Smoke Monitoring and Detection System

This project demonstrates a smoke monitoring and detection system built using an Arduino Uno, MQ-135 gas sensor, 16x2 LCD display, buzzer, and LEDs. The system detects smoke levels in the environment and provides a warning through visual and auditory alerts when the smoke concentration exceeds a certain threshold.

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Features

• Real-time Smoke Level Monitoring: Displays smoke concentration on the 16x2 LCD in PPM (parts per million).
• Audible and Visual Alerts: Activates a buzzer and red LED when smoke levels exceed the threshold.
• Safe Indicator: Green LED lights up when smoke levels are within the safe range.
• User-friendly Interface: Provides real-time feedback through the LCD display.
• I2C Communication Protocol: Utilized to interface the 16x2 LCD with fewer connections, simplifying the wiring process.

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Components Used

1. Arduino Uno - Microcontroller for managing sensors and outputs.
2. MQ-135 Gas Sensor - Measures smoke concentration.
3. 16x2 I2C LCD Display - Displays smoke values and system messages.
4. Buzzer - Emits audible alerts for high smoke levels.
5. LEDs (Red and Green) - Visual indicators for smoke level status.
6. Breadboard - For easy circuit connections.
7. Jumper Wires - Connects the components.

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Installation and Usage

1. Clone the Repository:

   git clone https://github.com/prantikm07/Smoke-Detection

2. Set Up the Hardware:

   • Connect the components as per the circuit diagram.
   • Upload the code to the Arduino Uno using the Arduino IDE.

3. Calibrate the Sensor:

   • Allow the MQ-135 sensor to warm up for 24-48 hours before use for accurate readings.

4. Run the System:

   • Power on the Arduino Uno.
   • Observe the LCD for smoke levels and corresponding alerts.

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Code Explanation

• Setup Section:
  • Initializes the LCD display and serial communication.
  • Displays introductory messages.
• Loop Section:
  • Reads smoke levels from the MQ-135 sensor.
  • Displays smoke levels on the LCD.
  • Triggers the buzzer and LEDs based on the smoke concentration.

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Demo Video

Click here for the Demo Video!

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Output Preview

• LCD Messages:

  • "SMOKE_VALUE: PPM"
  • Alerts like "WARNING!" when thresholds are exceeded.

• Buzzer and LEDs:

  • Buzzer and red LED activate for dangerous smoke levels.
  • Green LED indicates safe smoke levels.

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Threshold Values

• Safe Range: Below 100 PPM.
• Warning Range: 100 PPM and above.

You can adjust the threshold values in the code based on the specific application.

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Enhancements

• Add support for logging smoke concentration levels to an SD card.
• Implement Wi-Fi or Bluetooth for remote monitoring.
• Integrate a rechargeable battery for portability.

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License

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