Aquaponics pH & Temp Monitor Kit with Arduino Uno & Relay
Build an Automatic Aquaponics pH & Temperature Monitor with Arduino Uno & Relays
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Maintaining ideal pH and temperature is critical for fish health and plant nutrient uptake in any aquaponics system. This kit lets you build a dual-parameter monitor that continuously reads water conditions on an LCD and automatically triggers a heater or pH dosing pump when levels drift outside safe thresholds. Perfect for school science exhibitions, B.Tech mini-projects, or anyone serious about precision smart farming.
What You'll Build
You'll assemble a real-time monitor with an Arduino Uno at its core. A waterproof DS18B20 temperature sensor and an analog pH probe feed readings to a 16�2 LCD display. Two relay modules, protected by flyback diodes, switch external devices - one for a heater if temperature drops, the other for a peristaltic dosing pump if pH strays. The whole system runs on a breadboard with no soldering required, giving you a fully functional automation prototype for your own aquaponics setup.
What You'll Learn
- Calibrate an analog pH sensor and map its voltage to pH values
- Read a DS18B20 waterproof temperature sensor using OneWire protocol
- Drive 5V relay modules to control high-power actuators safely
- Display live sensor data on a 16�2 LCD via an I2C backpack
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| Analog pH Module | 1 |
| DS18B20 Waterproof | 1 |
| 5V Relay Module | 2 |
| 16x2 LCD | 1 |
| I2C Backpack | 1 |
| 1N4007 Diode | 5 |
| 4.7k? Resistors | 5 |
| 10k? Resistors | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 25 |
| 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
Designed for CBSE Class 11-12 students exploring smart farming, B.Tech ECE/EEE undergraduates building sensor-based automation projects, and Smart India Hackathon participants working on agriculture themes. Equally valuable for ATL Tinkering Lab facilitators and hobbyists from colleges like IIT, NIT, VIT, and BITS Pilani who need a reliable, ready-to-assemble aquaponics control module.
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 on the box to talk to the AI companion, which has seen every step of this project. If you need a human touch, our WhatsApp support responds within hours.
How do I calibrate the pH sensor included in the kit?
The AI companion walks you through a two-point calibration using pH 4.0 and 9.18 buffer solutions (not included). It also shows how to adjust the offset potentiometer for accurate readings.
Can this kit control a real heater or dosing pump directly?
The 5V relay modules can switch low-voltage DC devices or, with an external power supply, 230V AC equipment. Always follow safety guidelines for mains voltage, and the companion will guide you on wiring.
Can I add more sensors like dissolved oxygen or EC to this setup?
Yes, the breadboard and Arduino Uno have spare analog and digital pins. The AI companion can suggest expansion paths and code modifications for additional water quality sensors.
pH sensor and DS18B20 water temp both monitored. Relay triggers heater or pH dosing pump when out of range.
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