Smart Temperature-Controlled Fan with Arduino Kit
Build a Smart Temperature-Controlled Fan with Arduino Uno 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.
This kit puts you in control of indoor climate by turning a simple DC fan into a responsive cooling system. Using an LM35 temperature sensor and Arduino Uno, the fan's PWM speed adjusts proportionally to ambient temperature, with a manual override button to set a constant speed whenever you want. The 16x2 LCD displays real-time temperature and fan speed, making it a perfect project for learning closed-loop control and home automation.
What You'll Build
You'll assemble a complete fan speed control system on a breadboard, where the LM35 reads room temperature and the Arduino adjusts the motor speed via the L298N driver. The LCD screen shows current temperature and PWM duty cycle, and three tactile buttons let you manually increase, decrease, or reset the fan speed, overriding the automatic mode.
What You'll Learn
- Temperature sensing and analog signal processing with the LM35.
- Pulse-Width Modulation (PWM) motor speed control using the L298N.
- Programming an Arduino Uno to implement closed-loop feedback logic.
- Integrating an I2C LCD for real-time data display and user interaction.
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| LM35 | 1 |
| L298N Motor Driver | 1 |
| 5V DC Fan | 1 |
| 16x2 LCD | 1 |
| I2C Backpack | 1 |
| Tactile Button | 3 |
| 1N4007 Diode | 5 |
| 100�F 16V Caps | 3 |
| 100nF Caps | 5 |
| 10k? Resistors | 5 |
| 220? Resistors | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 30 |
| 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
Ideal for Class 11-12 CBSE science fair participants, B.Tech ECE/EEE students learning embedded control, and ATL Tinkering Lab innovators. It's a great hands-on project for Smart India Hackathon prototypes or college mini-projects, giving you a real home automation system you can demonstrate.
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 inside the box to chat with the AI companion, trained on this exact project. You can also reach our support team on WhatsApp for direct help.
Can I use this kit to control a household table fan?
This kit drives a small 5V DC fan, but you can adapt the L298N output to control a higher-current motor relay for a table fan with modifications (not included).
Does this kit work in hot Indian summer conditions?
Yes, the LM35 accurately measures 0�C to 100�C, and the PWM algorithm automatically speeds the fan as the room gets hotter - ideal for Indian climates.
Can I replace the LCD with an OLED display?
The I2C backpack makes swapping to an I2C OLED easy; you only need to change the display library in the code, and our AI companion can guide you through it.
LM35 controls fan PWM speed proportionally to temperature. Manual override via button. LCD shows temp and speed.
What's in this kit
- Arduino Uno R3
- LM35
- L298N Motor Driver
- 5V DC Fan
- 16x2 LCD
- I2C Backpack
- Tactile Button x3
- 1N4007 Diode x5
- 100�F 16V Caps x3
- 100nF Caps x5
- 10k? Resistors x5
- 220? Resistors x5
- 400-pt Breadboard
- M-M Wires x30
- 9V Battery Snap
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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