Arduino HVAC Performance Monitor Kit - Log Temperature & Humidity to SD Card, Plot Charts in Excel

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

Ever wondered how well your air conditioner or room heater holds a set temperature over time? With this kit, you'll build a self-contained monitor that records temperature, humidity, and light levels every 60 seconds to an SD card. The resulting CSV file opens directly in Excel, letting you plot professional charts to analyze HVAC performance, detect drafts, or study environmental patterns - all without writing a single line of code for the analysis.

What You'll Build

You'll assemble a sensor station that reads the DHT22 (temperature & humidity) and two LDRs (light-dependent resistors) to log environmental data onto a microSD card. Every entry carries an accurate timestamp from the DS3231 real-time clock. Run it on a 9V battery for hours, then pop the SD card into a computer, open the CSV in Excel, and instantly create line graphs that reveal minute-by-minute changes - a clean, practical project for science fairs or your own curiosity.

What You'll Learn

• Wiring a DHT22 sensor and reading temperature/humidity with Arduino
• Using LDRs to measure ambient light levels
• Logging time-stamped data to a microSD card via a DS3231 RTC
• Exporting CSV files and building visual plots in Microsoft Excel

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit is built for school students (CBSE Class 11-12, ATL tinkering labs), early B.Tech ECE/EEE learners, and curious hobbyists who want hands-on data logging. If you're preparing a science exhibition, a Smart India Hackathon project, or simply want to understand how environmental sensors capture real-world trends, this single box delivers everything you need to start logging in a single afternoon.

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.