AQI Sensor Meter

Introduction

An AQI (Air Quality Index) Sensor Meter is a device that measures the quality of air by detecting harmful gases and pollutants. It helps monitor pollution levels and provides information about whether the air is safe to breathe.

Components

Arduino Uno
MQ-135 Air Quality Sensor
OLED/LCD Display
Jumper wires
Breadboard
USB cable or power supply

Working

The MQ-135 sensor detects pollutants such as smoke and harmful gases. The Arduino processes the sensor data and displays the air quality level on the LCD/OLED screen.

Applications

Indoor air quality monitoring
Schools and offices
Smart homes
Environmental monitoring

Advantages

Real-time air quality monitoring
Low cost
Easy to build
Portable and user-friendly

Conclusion

The AQI Sensor Meter is a simple and effective project for monitoring air quality. It helps create awareness about pollution and promotes a healthier environment.

📷 Images to add:

AQI sensor circuit diagram
MQ-135 sensor module
Arduino connections
Working model displaying air quality values