This project is an IoT-based air fan system designed to monitor air quality and control fan operation based on environmental conditions. The system collects data from various sensors and sends it to a web application, which provides a dashboard for real-time monitoring and historical data visualization. Firebase is used as the database to support real-time data updates, ensuring a responsive and user-friendly experience.

The microcontroller (Node MCU ESP8266) is responsible for processing sensor data and requires a stable WiFi connection to send data to the Firebase database and enable communication with the web application.

• Node MCU ESP8266 V.2: The main microcontroller for connecting to WiFi and managing the system.
• Shield Nodemcu AB-Maker V1.3 For Nodemcu Esp8266 V2: Provides an easier way to connect components to the Node MCU ESP8266 with fewer wiring issues.
• DHT11: A sensor for measuring temperature and humidity.
• Relay 3.3 V 1 Channels: Used to control the fan operation.
• Fan Cooling 3.3 V: The cooling fan controlled by the relay.
• Sharp GP2Y1010AU0F Dust Sensor: Measures air quality by detecting dust particles in the environment.
• Adapter 9V: Powers the system components.
• Jumper Wires: For connecting the components to the microcontroller.

• Real-Time Monitoring: Displays temperature, humidity, and air quality data on a web application dashboard.
• WiFi Connectivity: The microcontroller connects to a WiFi network to send data to Firebase and communicate with the web application.
• Historical Data: Allows users to view previously recorded data for analysis and trend observation.
• Automatic Control: Automatically operates the fan based on air quality thresholds to maintain a clean environment.
• Firebase Integration: Ensures real-time data updates and storage for seamless user interaction.
• Web Dashboard: A visually appealing and interactive web interface to monitor and manage the system.

• Improved Air Quality: Ensures optimal air quality in the environment by activating the fan when needed.
• Energy Efficiency: Operates the fan only when required, reducing energy consumption.
• Data Insights: Offers valuable insights into air quality trends over time.
• Scalability: Can be expanded with additional sensors or features as needed.

1. Hardware Setup:

   • Assemble all components using the shield and connect them as per the circuit diagram.
   • Ensure proper connections for the dust sensor, DHT11, relay, and fan.

2. Firmware Upload:

   • Write and upload the code to the Node MCU ESP8266 using the Arduino IDE or PlatformIO.
   • Include the necessary libraries for DHT11, Firebase, and dust sensor in your code.

3. WiFi Configuration:

   • Configure the Node MCU ESP8266 with your WiFi credentials in the firmware.
   • Ensure the microcontroller has a stable WiFi connection for sending data to Firebase.

4. Firebase Setup:

   • Set up your Firebase database and configure it with your web application.
   • Update the Firebase credentials in the firmware to enable real-time data transfer.

5. Web Application:

   • Access the web dashboard using a browser to monitor live data.
   • Use the interface to view historical data and system status.

The system architecture is designed to ensure seamless data flow and operation:

• Sensors collect temperature, humidity, and dust levels.
• The Node MCU ESP8266 processes the data and sends it to Firebase in real-time via WiFi.
• The web application fetches the data from Firebase and displays it on a user-friendly dashboard.
• The relay activates the fan when air quality thresholds are breached, ensuring optimal air conditions.

Use the following credentials to log in and test the system:

• Email: [email protected]
• Password: Password123 This document provides a comprehensive overview of the project, guiding users through the setup and operation process. If you have further questions or encounter issues, feel free to contact the project maintainers.

email: [email protected] password: Password123