Humidity Fire Controller Using Arduino

Humidity Fire Controller with Arduino and Mist Maker

Introduction:

This project describes a humidity fire controller built with Arduino that maintains a desired humidity level to potentially prevent fires. The system utilizes a mist maker controlled by a relay and monitors humidity using a DHT11 sensor.

Components:

• Microcontroller: Arduino Uno or compatible board
• Relay Module: 1 Channel Relay Module
• Mist Maker: Ultrasonic mist maker with appropriate power supply
• Humidity Sensor: DHT11 sensor
• OLED Display: I2C OLED display (e.g., SSD1306)
• Jumper Wires: For connections

Functionality:

1. Humidity Monitoring:

   • The DHT11 sensor continuously measures the surrounding humidity.
   • The Arduino reads the sensor data and extracts the humidity value.

2. Humidity Control:

   • A user-defined humidity threshold is set (e.g., 80%).
   • The Arduino compares the measured humidity with the threshold.
   • If the humidity exceeds the threshold, the Arduino triggers the relay module.

3. Mist Maker Control:

   • The relay module controls the mist maker’s power supply.
   • When the relay is activated (humidity > threshold), the mist maker turns on and increases the humidity.
   • When the relay is deactivated (humidity < threshold), the mist maker turns off.

4. OLED Display:

   • The I2C OLED display shows the current humidity level in real-time.
   • Additionally, the display can indicate the mist maker’s operational status (On/Off).

Software:

• The Arduino is programmed using the Arduino IDE.
• Libraries for the I2C communication protocol and the DHT11 sensor are required.
• The code includes functions for reading the sensor, controlling the relay, and updating the OLED display.

Report Sections:

• Project Overview: Briefly describe the purpose and functionalities of the humidity fire controller.
• Hardware Components: List and explain the functions of each hardware component.
• Software Development: Explain the programming language, libraries used, and the overall program flow, including sensor data reading, relay control logic, and OLED display updates.
• Humidity Monitoring: Explain the DHT11 sensor selection and data acquisition process.
• Humidity Control Threshold: Discuss the rationale behind the chosen humidity threshold and potential adjustments based on the environment.
• Mist Maker Control: Describe the relay module’s function and how it controls the mist maker’s power supply.
• OLED Display Design: Explain the information displayed on the OLED (humidity level, mist maker status) and its benefits for user monitoring.
• Results & Discussion: Discuss the functionality of the system, potential improvements (e.g., temperature monitoring, automatic threshold adjustment), and any challenges encountered during development.
• Safety Considerations: Emphasize that this project is for humidity control and may not directly prevent fires. It’s crucial to follow proper fire safety practices alongside this system.
• Conclusion: Summarize the project’s achievements and its potential applications for maintaining humidity within a desired range.

Additional Considerations:

• Include schematics and code snippets (commented) in the report for better understanding.
• Explore options for integrating a temperature sensor for a more comprehensive environmental monitoring system.
• Consider implementing an alarm system that triggers if the humidity falls below a minimum threshold (potential fire risk).
• Research the limitations of using a mist maker for fire prevention and emphasize the importance of proper fire safety measures.

By following this outline and including relevant details, you can create a comprehensive report that showcases your work on the humidity fire controller using Arduino.