HVAC Performance Monitor Kit with ESP32 + DHT22 v2
Build a Real-Time HVAC Performance Monitor with ESP32, Touchscreen Gauges, and LVGL Graphics
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Imagine walking into a building and diagnosing HVAC health at a glance—temperature, humidity, and barometric pressure rendered as smooth animated gauges on a vibrant touchscreen. This kit turns an ESP32 into a professional-grade environmental monitor. You'll push beyond simple sensor readouts and build a complete dashboard with trend charts, touch-responsive buttons, and custom UI elements using the same LVGL graphics library found in commercial thermostats and industrial panels.
What You'll Build
A portable, self-contained unit that senses temperature, humidity, and atmospheric pressure, then displays them on a 2.4-inch TFT with animated needle gauges, scrolling line charts, and touchscreen controls. The final device fits in an enclosure, powered by a 5V adapter—ready to demonstrate in a lab or integrate into a capstone project for an IoT-enabled building management system.
What You'll Learn
- LVGL widget creation: gauges, charts, buttons, and labels with custom styling
- Interfacing ESP32 with DHT22 and BMP280 sensors over I2C and one-wire protocols
- Designing responsive touchscreen UIs with event-driven callbacks
- FreeRTOS task management to update sensor data without blocking the display
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| 2.4in TFT ILI9341 | 1 |
| DHT22 | 1 |
| BMP280 | 1 |
| 4.7kΩ Resistors | 5 |
| 100nF Caps | 5 |
| PCB Prototype Board | 2 |
| 5V 2A PSU | 1 |
| Enclosure Box | 1 |
| Soldering Iron | 1 |
| Solder Wire | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
Advanced engineering students in B.Tech ECE/EEE programs who need a standout embedded systems project for internships or hackathons like Smart India Hackathon. Also perfect for ATL Tinkering Lab mentors guiding final-year IoT projects, and hobbyists moving from Arduino to ESP32 with a hunger for polished graphical interfaces. If you've already built simple sensor loggers and want a UI that truly communicates data, this kit bridges the gap between prototype and product.
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.
What if I get stuck during the build?
Scan the QR code on your kit to access the AI companion trained on this exact HVAC monitor build. It can debug your wiring, LVGL code, and sensor readings. For persistent issues, message our WhatsApp support for a human engineer’s help.
Do I need prior experience with LVGL or touchscreens?
This is an advanced kit, so some familiarity with ESP32 programming in Arduino IDE or PlatformIO is assumed. The AI companion includes a crash course on LVGL basics, but you’ll progress fastest if you’ve already worked with I2C sensors and understand the concept of UI widgets.
Can I modify the dashboard design after building?
Absolutely. Once the fundamental gauge and chart templates are working, you can easily change colors, add new sensor inputs, or even create a multi-room monitor. The LVGL framework is highly customizable, and the companion provides guidance on extending the code.
Is the enclosure pre-cut for the display and sensors?
The enclosure is a blank project box with enough space; you will drill or cut openings for the TFT, sensor vents, and power cable. This is part of the hands-on experience, and the AI companion includes a template diagram to guide you.
HVAC — LVGL graphics library on ESP32 renders animated gauges, charts and buttons on 2.4in TFT touchscreen.
What's in this kit
Choose your assembly option:
- Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
- Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items