Arduino Mega Hydroponics Brewing Controller Kit - Full PID Control
Build a Fully Automated Hydroponics Nutrient Brewing System with Arduino Mega
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
You don't just monitor temperature-you orchestrate a living nutrient ecosystem. This kit puts you in command of dosing pumps, pH correction, EC stability, and grow-light spectrum shifts, all governed by a PID loop that maintains your solution's chemical balance with industrial precision. Whether you run a deep-water culture setup or a commercial hydroponics rack in a polyhouse, you'll produce repeatable crop cycles without manual intervention.
What You'll Build
A complete brew controller that reads EC, pH, and dual temperature zones, then triggers 4-channel relay outputs to manage peristaltic dosing pumps, a main circulation pump, and LED grow lights. It logs every sensor reading to a MicroSD card with RTC timestamps, displays real-time values on the OLED, and uses MOSFETs to handle high-current devices. The result is a self-correcting nutrient station that holds your target recipe within tight tolerances across weeks of operation.
What You'll Learn
- Implement a PID algorithm to stabilise EC and pH by modulating dosing pump duty cycles
- Interface TDS, pH, DS18B20, BH1750, and DS3231 sensors via I2C and OneWire
- Control high-voltage peripherals safely through relay and MOSFET driver circuits
- Design a real-time data logger with microSD and RTC for crop audit trails
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Mega 2560 | 1 |
| TDS EC Meter | 1 |
| Analog pH Module | 1 |
| DS18B20 Waterproof | 2 |
| BH1750 | 1 |
| DS3231 RTC | 1 |
| 4-ch Relay Module | 1 |
| MicroSD Module | 1 |
| 0.96in OLED | 1 |
| IRF540N MOSFET | 3 |
| 1N4007 Diode | 10 |
| 10k? Resistors | 10 |
| 100nF Caps | 15 |
| PCB Prototype Board | 3 |
| 12V 5A PSU | 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
Hydroponics entrepreneurs building automated NFT or DWC systems, B.Tech ECE/EEE students tackling precision agriculture capstone projects, Smart India Hackathon teams working on Agritech, and IIT/NIT research scholars prototyping closed-loop nutrient controllers. If you've outgrown manual EC meters and want a programmable, log-worthy setup that can scale from a 4-plant grow tent to a polyhouse zone, this is your platform.
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 launch our AI companion trained on this kit's exact wiring and code. It walks you through each connection and PID tuning step, with WhatsApp escalation if you need a human engineer.
Does the kit include the dosing pumps and grow lights?
The kit provides all control electronics and driver stages (relay, MOSFET). You supply your own peristaltic pumps and LED fixtures; the relay board and MOSFET circuits are rated to switch them directly.
Is the PID algorithm pre-loaded or do I write it from scratch?
The AI companion provides a validated PID sketch tailored to the EC and pH sensors included. You'll integrate and calibrate it yourself-learning the loop mechanics in the process.
Can I log data over Wi-Fi instead of microSD?
The kit uses a microSD module for robust, offline logging. Adding an ESP8266 or ESP32 for cloud upload is a common extension; the AI companion includes wiring suggestions for that upgrade path.
Brewing - Controls EC, pH dosing, pump cycle timer and grow light spectrum. Full PID control of nutrient solution.
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