This project is an ESP32-based Air Quality Monitoring System that monitors air quality using the MQ135 gas sensor. The system displays air quality information on an I2C LCD and alerts users through LEDs and a buzzer when pollution levels become unhealthy.
- Real-time air quality monitoring
- AQI indication
- LED status indication
- Buzzer warning
- LCD display
- ESP32-based implementation
- ESP32 Development Board
- MQ135 Gas Sensor
- I2C LCD Display (16x2)
- Buzzer
- LEDs
- Jumper Wires
- Breadboard
- Arduino IDE
- C++
- Wi-Fi monitoring
- Mobile app integration
- Cloud data storage
- Historical data visualization
Abhin R
- Open the code in Arduino IDE.
- Install the required ESP32 board package.
- Upload the code to the ESP32.
- Connect the hardware as shown in the circuit diagram.
MIT



