IoT HVAC Performance Monitor Kit with ESP32 & DHT22 - 3 Months on LiPo

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

When an HVAC unit begins to drift, temperature and humidity are the first tell-tales. This kit lets you build a sensor that wakes every 15 minutes, captures precise readings through a DHT22, uploads them to a ThingSpeak cloud dashboard, and slips back into deep sleep. A single charge of the included 2000mAh LiPo keeps the unit running for three months, so you can spot problems before a compressor fails. All components are verified as a system; the only thing missing is your Wi-Fi network.

What You'll Build

You'll assemble a battery-powered remote monitoring node that tracks real-time temperature and humidity near your HVAC vent or air-handling unit. The ESP32 wakes from deep sleep on a timer, connects to Wi-Fi, grabs a reading, pushes it to a private ThingSpeak channel, then powers down again. Graphs update automatically, and you can set email alerts right from the cloud dashboard. The final device is small enough to mount inside a return-air plenum or leave on a shelf.

What You'll Learn

• Interfacing the DHT22 digital temperature and humidity sensor with ESP32 GPIO pins
• Writing Arduino code that uses deep-sleep timers to maximise battery life
• Posting sensor data to ThingSpeak over Wi-Fi using HTTP GET requests
• Analyzing remote environmental trends and setting cloud-based alerts for HVAC faults

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Students in India's Atal Tinkering Labs can explore real-world IoT sensing without hunting for correct resistor values. CBSE Class 11-12 project makers get a ready-to-present HVAC monitor that logs data for weeks. First-year B.Tech ECE/EEE students at NITs, VIT, or BITS will find it an ideal introduction to ESP32 fundamentals and cloud integration. Even experienced hobbyists appreciate the pre-configured deep-sleep profile that instantly stretches battery life.

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.