Meeting Room Ventilation Monitor Kit with Arduino Uno – Breathable Spaces with Automatic Alerts

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

Stuffy meeting rooms sap focus and energy. This kit lets you build a real‑time CO2 monitor that reads indoor carbon dioxide with an MH-Z19B sensor. When levels cross 1000 ppm—the point where drowsiness starts—a relay switches on an exhaust fan and a bright OLED displays a warning. It’s a practical smart‑home gadget that directly improves air quality in schools, offices, and homes, without needing any coding experience to start.

What You'll Build

You’ll assemble a compact air quality station on a breadboard. The Arduino Uno reads CO2 concentration from the MH-Z19B sensor every two seconds, shows the live ppm value on a crisp 0.96‑inch OLED, and compares it against a preset threshold. Once the reading stays above 1000 ppm for a few seconds, the relay clicks on—connecting your exhaust fan (or any alert device). The OLED simultaneously flashes a “Ventilate Now” message, creating the exact logic a real meeting room ventilation system uses.

What You'll Learn

• Interfacing a UART‑based CO2 sensor and decoding its data
• Driving a 0.96‑inch OLED display over I2C to show real‑time readings
• Controlling a 5V relay module safely to switch mains‑powered devices
• Writing conditional logic in Arduino IDE that triggers actions based on sensor thresholds

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Students from CBSE Class 11–12 exploring embedded systems, B.Tech ECE/EEE undergraduates working on indoor air quality mini‑projects, and ATL Tinkering Lab participants will find this kit exactly matches syllabus needs. It’s also a quick prototype for Smart India Hackathon teams tackling sustainable office solutions and for hobbyists who want a genuinely useful first Arduino project—no prior electronics background required.

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.