Build a Wine Cellar Climate Monitor — Arduino Uno, MQ-135 Air Quality, DHT22 & BMP280 with Colour-Coded OLED Display

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

Whether you manage a small home wine collection or are prototyping for a school science project, this kit lets you build a dedicated climate monitor that tracks temperature, humidity, barometric pressure, and airborne contaminants — then synthesizes them into a single, easy-to-read composite AQI score. The colour-coded OLED shifts from green to orange to red, giving you an immediate sense of whether your cellar environment is stable or drifting into risky territory.

What You'll Build

You will assemble a standalone monitor that continuously reads the MQ-135 gas sensor for VOCs and equivalent CO₂, the DHT22 for temperature and humidity, and the BMP280 for atmospheric pressure and altitude-adjacent temperature. The Arduino Uno processes all sensor data, applies a weighted scoring algorithm to compute a composite Air Quality Index, and drives a 0.96-inch OLED display with dynamic colour bands — green for ideal cellar conditions, yellow for caution, and red when parameters threaten wine quality.

What You'll Learn

• Interfacing analog (MQ-135) and digital (DHT22, BMP280) sensors with Arduino Uno
• Calibrating a gas sensor and mapping raw values to meaningful AQI tiers
• Using I²C communication to drive an OLED display with custom graphics and colour-coded feedback
• Designing a composite index algorithm that fuses temperature, humidity, pressure, and air quality data

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Designed for intermediate builders aged 15 and above, this kit fits perfectly into CBSE Class 11-12 physics and computer science practicals, B.Tech ECE/EEE mini-projects, and Smart India Hackathon prototypes that involve environmental sensing. It’s also ideal for ATL Tinkering Labs looking to demonstrate sensor fusion and for students at IITs, NITs, VIT, or BITS Pilani who need a ready-to-assemble environmental monitor for their dorm or lab.

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.