HVAC Performance Monitor Kit with Arduino Uno + LED
Build an HVAC Performance Monitor with Arduino Uno and OLED Rotary Menu
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
In an age where energy efficiency demands real-time monitoring, this kit transforms an Arduino Uno into a professional HVAC performance dashboard. You will build a multi-level menu on a crisp 0.96-inch OLED, navigated entirely by a single rotary encoder — short press scrolls, long press enters. The reusable UI code you write becomes a template for every future embedded project, eliminating months of interface redesign.
What You'll Build
This isn't just a temperature display. You will create a complete HVAC monitoring tool that reads ambient temperature and humidity via the DHT22, displays live data on hierarchical menu screens, and uses a relay to control a fan or compressor based on threshold conditions. The final unit mounts neatly on a prototyping board, powered by a 9V battery, and can be enclosed for field use.
What You'll Learn
- Structuring a non-blocking rotary encoder driver with debounce and long-press detection
- Designing a multi-level OLED menu system with reusable state-machine logic
- Interfacing a DHT22 sensor and filtering readings for HVAC control algorithms
- Piloting a 5V relay module from menu-driven setpoints without blocking the UI
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| Rotary Encoder | 1 |
| 0.96in OLED | 1 |
| DHT22 | 1 |
| 5V Relay Module | 1 |
| 4.7kΩ Resistors | 5 |
| 100nF Caps | 5 |
| PCB Prototype Board | 1 |
| 9V Battery Snap | 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
This advanced kit is built for B.Tech ECE/EEE students tackling Smart India Hackathon energy challenges, IIT/NIT/VIT final-year instrumentation projects, and ATL Tinkering Lab mentors who need a reusable IoT UI framework. CBSE Class 11-12 physics learners who have already mastered basic Arduino should use the included AI companion to bridge the gap to real-time embedded software design.
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 to chat with the AI companion that understands this kit's wiring and code, or message us on WhatsApp for direct engineer support.
Can I customize the HVAC setpoints on the fly?
Yes — the rotary encoder menu lets you adjust temperature/humidity thresholds and relay logic without re-programming the Arduino.
Is the soldering iron safe for a college hostel room?
The included 25W iron works on standard Indian sockets; we recommend a fireproof mat (not included) and ventilation.
Can I reuse the menu code for another project?
Absolutely. The state-machine UI is written in clean, modular Arduino C++ — drop it into any future sensor dashboard project.
HVAC — Rotary encoder navigates multi-level OLED menu. Long press enters, short press scrolls. Reusable UI code.
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.
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