Hydroponics pH Monitor Kit with ESP32 + Sensor
Hydroponics pH Monitor Kit with ESP32 & Sensor Array — Predict Water Quality with AI
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Transform your hydroponics setup into a data-driven AI lab. This kit combines an array of water quality sensors — pH, TDS (EC), dissolved oxygen, and turbidity — with an ESP32-S3 microcontroller and a TensorFlow Lite regression model. The system not only tracks real-time water parameters but also predicts the Water Quality Index (WQI) and classifies contaminant types, enabling proactive nutrient management. Ideal for agri-tech researchers, hydroponics startups, and advanced hobbyists exploring the intersection of IoT and AI.
What You'll Build
A solar-powered, LoRa-enabled water quality monitor that continuously samples your hydroponic solution. The ESP32-S3 reads sensor data, timestamps with DS3231 RTC, logs to microSD, and transmits via LoRa to a dashboard. The onboard TFLite model predicts WQI and identifies whether a contaminant is organic, chemical, or mineral-based, helping you intervene before plants suffer.
What You'll Learn
- Integrating analog sensors (pH, TDS, DO, turbidity) with ESP32-S3
- Designing low-power circuits with buck converter, 18650 cells, and solar panel
- Implementing LoRa communication with RA-02 module for long-range data transmission
- Training and deploying a TensorFlow Lite regression model on a microcontroller for real-time prediction
Kit Contents
| Component | Quantity |
|---|---|
| ESP32-S3 Dev Board | 1 |
| TDS EC Meter | 1 |
| Analog pH Module | 1 |
| Analog DO Module | 1 |
| Turbidity Sensor | 1 |
| DS3231 RTC | 1 |
| MicroSD Module | 1 |
| RA-02 LoRa | 1 |
| 433MHz Antenna | 1 |
| LM2596 Buck Converter | 1 |
| Solar Panel 6V 2W | 1 |
| 18650 Cell | 2 |
| TP4056 Module | 1 |
| 100nF Capacitor | 15 |
| PCB Prototype Board | 3 |
| Waterproof Enclosure | 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
Engineering graduates (B.Tech ECE/EEE/EIE) working on agri-tech capstone projects will find a robust hardware backbone for WQI analytics. Participants in Smart India Hackathon or TCS Sustainathon building IoT water quality prototypes can deploy a complete node within a sprint. Researchers at IIT/NIT/VIT/BITS developing smart hydroponics prototypes get a field-ready kit that integrates power, sensing, edge AI, and wireless logging out of the box.
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 start a session with the AI companion, which walks you through every wiring and calibration step. If you need human help, our WhatsApp support responds within hours — just send a photo of your setup.
How accurate is the WQI prediction and contaminant classification?
The pre-trained TFLite model achieves over 90% accuracy on a curated dataset of common hydroponic nutrient and contaminant scenarios. You can recalibrate the model using your own solution samples via the included logging workflow.
Do I need additional tools for assembly?
The kit includes a soldering iron and solder wire. You'll only need basic hand tools like a wire stripper and multimeter, plus a computer with USB for programming the ESP32-S3.
Can the LoRa connection reach a central dashboard inside a greenhouse?
Yes, the RA-02 module with the included antenna achieves 500-800m range in open air. Inside a polyhouse, expect reliable data transmission up to 200m, depending on structure. For longer links, pair it with any standard LoRa gateway.
Hydroponics — TDS EC + pH + DO + turbidity sensor array feeds TFLite regression model that predicts WQI and contaminant type.
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.
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