Automated Attic Ventilation Controller Kit with ESP32 + Servo
Keep Your Attic Cool Automatically with the ESP32 & Servo Ventilation Controller Kit
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
On a scorching summer afternoon, your attic can become a heat trap that radiates down into your living spaces, raising indoor temperatures and forcing your AC to work overtime. This kit lets you build a smart ventilation controller that reads attic and outdoor temperatures in real time and opens a servo-actuated vent when the attic is hotter than outside, expelling trapped heat passively. No more manual adjustments—just an energy-efficient, sensor-driven system that keeps your home cooler and cuts electricity bills.
What You'll Build
You will construct a fully functional automatic attic ventilation controller on a custom PCB. Two DS18B20 probes measure temperatures inside and outside, an ESP32 microcontroller processes the data, and an SG90 servo opens a louver or hatch when conditions are right. An OLED displays current temperatures and vent status, while a MicroSD module logs every reading for long-term energy analysis. The DS3231 RTC ensures accurate time-stamped data and lets you schedule ventilation windows.
What You'll Learn
- Integrate multiple DS18B20 sensors on a single OneWire bus with reliable parasitic power
- Program an ESP32 to poll sensors, compare data, and drive two SG90 servo motors based on threshold logic
- Interface a DS3231 RTC module for time-based scheduling and accurate logging
- Log sensor readings to a MicroSD card and display real-time status on a 0.96in OLED
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| DS18B20 Probe | 3 |
| SG90 Servo | 2 |
| DS3231 RTC | 1 |
| MicroSD Module | 1 |
| 0.96in OLED | 1 |
| LM2596 Buck Converter | 1 |
| 4.7kΩ Resistors | 5 |
| 100nF Caps | 10 |
| PCB Prototype Board | 2 |
| Enclosure Box | 1 |
| 12V Adapter | 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 challenges, IoT product developers prototyping home automation solutions, and serious DIY makers who want a reliable, data-driven ventilation project. It also meets the rigorous demands of ATL Tinkering Labs for faculty-led advanced modules and serves as a capstone project for IIT/NIT/VIT/BITS engineering students exploring embedded systems and energy management.
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 in the box to access the AI companion that guides you step-by-step. You can also reach our support team on WhatsApp for direct troubleshooting.
How do I set the temperature difference that triggers the vent?
The companion code includes a configurable threshold value you can edit before flashing. The AI assistant will show you the exact line to modify and how to calibrate it based on your attic’s insulation.
Will this work if I don’t have a proper attic vent opening?
The kit assumes a basic louver or hatch; if your attic lacks one, you may need to install a small vent frame. The AI companion includes 3D-printable bracket designs and guidance on mounting the servo.
Can I power the controller with a solar panel instead of the included 12V adapter?
Yes, the LM2596 buck converter accepts a wide input range, so you can connect a 12V solar panel. The AI assistant provides a wiring diagram and battery backup suggestions for nighttime operation.
DS18B20 in attic + DS18B20 outside compare temperatures. Opens servo vent when attic hotter than outside.
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