Aquarium Temperature Controller with Arduino Kit
Build Your Own Aquarium Temperature Controller with Arduino Uno and Relay 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.
Imagine your fish swimming in water that stays exactly 26�C, no matter how cold the room gets. With this kit, you'll build a smart monitor that reads temperature from a waterproof DS18B20 probe, displays it on a crisp LCD, and toggles a heater relay using hysteresis-just like a real thermostat. No more manual checking or risky temperature swings.
What You'll Build
You'll assemble a control system that senses water temperature and automatically switches a heater on or off to keep your aquarium stable. The LCD shows current temperature and target, and two tactile buttons let you adjust the setpoint. The result is a reliable, energy-saving guardian for your aquatic pets.
What You'll Learn
- How to read data from a digital temperature sensor (DS18B20) using OneWire communication
- How to control a relay with Arduino to switch high-power devices safely
- How to implement hysteresis in code to prevent relay chatter
- How to display sensor data on a 16x2 LCD with an I2C backpack for neat wiring
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | x1 |
| DS18B20 Probe | x1 |
| 5V Relay Module | x1 |
| 16x2 LCD | x1 |
| I2C Backpack | x1 |
| Tactile Button | x2 |
| 4.7k? Resistors | x5 |
| 1N4007 Diode | x3 |
| 400-pt Breadboard | x1 |
| M-M Wires | x20 |
| 9V Battery Snap | x1 |
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 perfect for CBSE school students (Class 5-10) exploring practical electronics as part of their learning, and for ATL Tinkering Labs looking for a ready-made project that covers sensors, actuators, and coding. Hobbyist parents building with their children will also appreciate the guided build and quick delivery across India.
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?
Open the AI companion from the QR code on your kit box-it guides you step by step. You can also send a WhatsApp message to our support team, and we'll help you within an hour.
Is this kit safe to use near water?
The DS18B20 probe is fully waterproof and safe to submerge. Keep the Arduino, relay module, and breadboard away from splashes; we include a diode for safe heater switching, and the guide explains proper enclosure tips.
Does the kit include the aquarium heater itself?
No, the relay module switches any standard aquarium heater up to 10A. You bring your own heater plug-the kit works with all common models sold in India.
Can I power the Arduino from the aquarium's filter plug?
We include a 9V battery snap for a standalone build, but the AI guide also shows how to use a USB adapter or a 12V supply from your existing setup-pick what suits you best.
Aquarium - DS18B20 controls relay heater to hold target temperature with hysteresis. LCD shows temps.
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