DIY Smart Air Quality Monitor for Home & Workshop

Monitoring air quality at home or in a workshop is important for health and safety. With a simple DIY smart air quality monitor, you can track harmful gases and get alerts when air quality drops.

What This Project Does

This smart device measures air quality using sensors and shows real-time data on a display or mobile app. It’s ideal for homes, workshops, and small labs.

Main Components Used

• Air quality sensor (MQ-135 or similar)

• Microcontroller (Arduino / ESP8266 / ESP32)

• OLED or LCD display

• Buzzer or LED for alerts

• Power supply (USB or adapter)

How It Works

The sensor detects gases like CO₂, smoke, and pollutants. The microcontroller processes the data and displays air quality levels. If pollution crosses a set limit, the buzzer or LED alerts you.

Why This Project Is Useful

• Improves indoor air safety

• Early warning for smoke or gas

• Great learning project for IoT

• Useful for kids, students, and hobbyists

Best Places to Use

• Home rooms

• Electronics workshops

• Garages

• Classrooms

This project is low-cost, beginner-friendly, and can be upgraded with Wi-Fi for mobile notifications.

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