HVAC Performance Monitor Pro Kit with Arduino Uno + DHT22
Build Your Own HVAC Performance Monitor with Arduino Uno, DHT22, and Animated TFT 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.
Imagine holding a compact device that reads your room’s temperature, humidity, and atmospheric pressure, then paints a miniature weather dashboard with animated suns, drifting clouds, or raindrops on a bright TFT screen. This kit transforms a microcontroller into an HVAC performance monitor that turns invisible environmental data into an interactive visual story — perfect for checking if your air conditioner or heater is actually doing its job.
What You'll Build
You will assemble a standalone environmental monitor powered by Arduino Uno. It continuously pulls precise readings from a DHT22 (temp and humidity) and a BMP280 (barometric pressure), then interprets current conditions and renders animated weather icons — sun, cloud, rain — on the 1.8-inch TFT display. The final unit fits on your desk, in a lab, or even inside an HVAC dashboard to visually verify system performance at a glance.
What You'll Learn
- How to interface multiple I2C/1-Wire sensors on a single Arduino bus
- Reading and calibrating humidity, temperature, and pressure values from DHT22 and BMP280
- Driving a TFT ST7735 display and drawing dynamic, animated weather icons
- Writing modular Arduino code that blends sensor polling, decision logic, and real‑time graphics
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| DHT22 | 1 |
| BMP280 | 1 |
| 1.8in TFT ST7735 | 1 |
| 4.7kΩ Resistors | 5 |
| 100nF Capacitors | 5 |
| 400-pt Breadboard | 1 |
| Male-Male Jumper Wires | 20 |
| 9V Battery Snap | 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
This intermediate-level build is ideal for CBSE Class 11-12 students working on physics or computer science practicals, B.Tech ECE/EEE undergraduates prototyping HVAC-related semester projects, and participants of the Smart India Hackathon who need a ready-to-deploy indoor climate monitor. ATL Tinkering Lab mentors will find it a complete package for teaching sensor fusion and display programming in a single session.
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 for immediate AI‑guided troubleshooting specific to your kit, or drop a WhatsApp message for direct help from our Bengaluru team.
Can I monitor outdoor weather with this kit?
While the sensors are designed for indoor use, their response time and accuracy allow basic outdoor climate tracking if properly shielded from direct sun and moisture.
Does the kit include a battery for portable use?
It includes a 9V battery snap; simply connect a common 9V battery (not included due to shipping restrictions) to power the monitor anywhere away from a USB port.
What coding knowledge is required?
The furnished code is fully commented and walks you through sensor initialization, reading, and TFT graphics. Basic Arduino IDE familiarity is enough — you’ll learn the rest during the build.
HVAC — TFT shows animated weather icons (sun, cloud, rain) based on DHT22 and BMP280 readings.
What's in this kit
- Arduino Uno R3
- DHT22
- BMP280
- 1.8in TFT ST7735
- 4.7kΩ Resistors x5
- 100nF Caps x5
- 400-pt Breadboard
- M-M Wires x20
- 9V Battery Snap
Other projects you can build
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