Arduino Seedling Temperature Controller Kit
Precision Seedling Germination Controller Kit with Arduino Uno & DS18B20
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 seedling tray at the exact warmth seeds need to burst into life, while an LCD screen reports every fraction of a degree. This kit puts that power in your hands. You'll wire a waterproof DS18B20 sensor, connect a relay that toggles a heating pad, and code an Arduino Uno to maintain your chosen temperature - all on a single breadboard. It's a perfect introduction to smart farming, whether for a CBSE science exhibition, an ATL tinkering session, or just the joy of building something that makes plants thrive.
What You'll Build
You'll assemble a real-world temperature regulation system that holds a seedling tray at an exact temperature you select. The waterproof sensor goes directly into the soil or water, the relay switches a heater pad on and off, and the 16x2 LCD shows both the live temperature and your target set point. Two tactile buttons let you adjust the target up or down, turning you into the designer of a miniature climate controlled growing environment.
What You'll Learn
- Wiring a digital temperature sensor and reading it with an Arduino
- Using a 5V relay to safely switch an external heating device
- Displaying real-time data on a 16x2 LCD via I2C communication
- Building a closed-loop control system that responds to sensor feedback
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| DS18B20 Waterproof | 1 |
| 5V Relay Module | 1 |
| 16x2 LCD | 1 |
| I2C Backpack | 1 |
| Tactile Button | 2 |
| 1N4007 Diode | 5 |
| 4.7k? Resistors | 5 |
| 220? Resistors | 5 |
| 400-pt Breadboard | 1 |
| M-M 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 kit is built for young agri-tech explorers in India - think CBSE Class�6-12 students, ATL Tinkering Lab members, and Smart India Hackathon junior participants. It is also an ideal mini-project for first-year B.Tech ECE/EEE students at NITs, VIT, or BITS, and fits seamlessly into school STEM fairs and rural agriculture awareness camps.
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 knows every wire and code line of this exact project. Prefer a human? Reach us on WhatsApp - our engineers respond within a few hours.
Do I need to solder anything?
No, all connections are made on the included 400-pt breadboard using male-male jumper wires. The I2C backpack snaps directly onto the LCD, and the sensor and relay use pre-terminated pins.
Can I use this to control temperature for cooking or other liquids?
Absolutely. While the kit is designed for seedling germination, the waterproof DS18B20 and relay are equally suited for sous-vide, home brewing, or aquarium heating. Just match your heater pad's rating to the relay capacity.
Is the kit safe for children?
Yes. The relay module handles low-voltage DC, the circuit includes flyback diodes for protection, and detailed safety notes come in the box. Adult supervision is recommended when connecting the battery.
Cooking - DS18B20 controls relay heater pad to hold seedling tray at target temperature. LCD shows temp and set point.
What's in this kit
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