Indoor CO2 Dashboard Kit with Arduino Uno & DHT22: Build a Smart Room Air Quality Monitor

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

Give your child a hands-on introduction to smart home technology. With this kit, they will assemble and program an Arduino-powered dashboard that continuously monitors CO₂, temperature, and humidity. A simple traffic-light LED system glows green, yellow, or red to signal when it’s time to ventilate the room — protecting focus and health.

What You'll Build

A real-time indoor climate display that reads CO₂ concentration from the MH-Z19B sensor, ambient temperature and humidity from the DHT22, and shows the values on a crisp OLED screen. The three-colour LED indicator lights up green when air quality is good, yellow when it’s moderate, and red when ventilation is urgently needed. It’s a practical project that can sit on a desk or bedside and actually improve the room environment.

What You'll Learn

• Wiring sensors and an OLED display to an Arduino Uno on a breadboard
• Reading CO₂ levels from an MH-Z19B sensor using UART serial communication
• Measuring temperature and humidity with a DHT22 digital sensor
• Programming conditional logic to control LEDs based on real-time sensor values

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Young makers aged 5–15 exploring Arduino through a real-world project, CBSE/ICSE students building science exhibition models, and ATL Tinkering Lab participants looking for a guided indoor air quality experiment. Parents who want to introduce coding and electronics with a tangible smart home project will also find it perfect.

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.