ATL Air Quality Monitor Lab Kit: Arduino-Powered Indoor AQI Sensor That Teaches Environmental Science

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Imagine walking into your classroom and instantly seeing whether the air is fresh or polluted — on a tiny screen you built yourself. This kit turns that idea into a real, working air quality monitor. Using the MQ135 gas sensor, an Arduino Nano, and an OLED display, you’ll create a device that reads invisible gases, estimates an AQI value, and alerts everyone with colored LEDs and a buzzer. It’s a hands-on way to understand how environmental monitoring works in the real world, directly aligning with ATL innovation goals.

What You'll Build

You'll assemble a compact, breadboard-based station that continuously samples indoor air through the MQ135 sensor, processes the data on the Arduino Nano, and shows a numeric AQI estimate on the 0.96-inch OLED. Two LEDs — green for clean air and red for poor quality — plus a piezo buzzer provide immediate visual and audible feedback. The finished project can sit right on your lab bench, turning abstract air pollution concepts into a tangible, measurable experiment.

What You'll Learn

• Interfacing MQ135 gas sensor with Arduino and interpreting analog gas concentrations
• Understanding Air Quality Index (AQI) and mapping sensor readings to meaningful pollution categories
• Displaying real-time data on OLED screens with simple code
• Using conditional logic to control LEDs and a buzzer for threshold-based alerts

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Perfect for CBSE Class 11–12 science students exploring environmental science through electronics, ATL Tinkering Lab participants, and Smart India Hackathon teams building sensor-based solutions. Also ideal for B.Tech ECE/EEE undergraduates prototyping air quality projects, or hobbyists aged 10–15 who want a guided introduction to monitoring real-world data with Arduino.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.