Hydroponics TDS Monitor Kit with ESP32 + LoRa
Multi-Depth Hydroponics TDS & Turbidity Monitor with ESP32 + LoRa
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Build a complete wireless sensor network that reveals the nutrient and organic carbon story beneath your hydroponic beds. This kit equips you with five independent depth nodes—each measuring TDS/EC and optical turbidity—that transmit readings via LoRa to a central ESP32 gateway. Powered by an AI companion that understands every jumper and calibration step, you’ll go from components to a field‑ready data logger in a weekend.
What You'll Build
You will assemble and deploy a distributed monitoring system that places five sensor nodes at distinct depths in your hydroponic setup. Each node captures TDS (electrical conductivity), turbidity, and a timestamp, then forwards the packet over LoRa to the ESP32 coordinator. The gateway stores all readings with RTC‑synchronized accuracy on a microSD card, creating a ready‑to‑analyse dataset that can be directly linked to organic carbon content—precisely what precision agriculture and research projects demand.
What You'll Learn
- Design and deploy a multi‑node LoRa mesh for long‑range agricultural data transmission
- Calibrate and interface TDS EC probes and optical turbidity sensors for reliable hydroponic measurements
- Implement a DS3231 real‑time clock and MicroSD logging to record timestamped sensor readings with zero data loss
- Correlate multi‑depth TDS and turbidity trends to organic carbon concentration, a key metric for nutrient management in soilless cultures
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| Arduino Nano | 5 |
| RA-02 LoRa Module | 6 |
| TDS EC Meter | 5 |
| Turbidity Sensor | 5 |
| DS3231 RTC Module | 1 |
| MicroSD Card Module | 1 |
| 433MHz Antenna | 6 |
| 18650 Li‑ion Cell | 5 |
| TP4056 Charging Module | 5 |
| 100nF Ceramic Capacitor | 20 |
| PCB Prototype Board | 6 |
| Waterproof Enclosure | 5 |
| 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
This advanced kit targets researchers and agri‑tech builders across India. It’s ideal for B.Tech and M.Tech students in ECE, agricultural engineering, and IoT specializations at IITs, NITs, and state agricultural universities. Smart India Hackathon teams developing precision agriculture prototypes will find it ready‑made, as will startups building open‑source soil sensors and ATL Tinkering Lab mentors guiding advanced tinkering on sustainable farming. If you already have basic electronics and Arduino experience, this kit channels your skills towards a real‑world, data‑driven agriculture problem.
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 trained on this exact kit; if you need human help, message us on WhatsApp for a same‑day reply from our Bengaluru team.
Can I adapt this kit for soil‑based farming instead of hydroponics?
Absolutely. The TDS and turbidity sensors work well in prepared soil slurries. Simply adjust the probe placement and enclosure sealing for soil contact; the LoRa network will still cover typical field distances reliably.
How do I correlate the readings with organic carbon content?
The included example sketch and the AI companion guide you through converting TDS and turbidity to estimated organic carbon. A standard linear regression between EC and dissolved organic carbon is pre‑calibrated in the code, and you can refine it using your own lab data.
Do I need prior soldering experience?
Yes, basic soldering is required to assemble the nodes onto the prototype boards and secure the weatherproof enclosures. The kit provides a soldering iron and solder wire, and the AI companion walks you through each joint if you’re refreshing your skills.
Hydroponics — TDS EC + optical turbidity at multiple soil depths correlate with organic carbon content. LoRa uploads data.
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.
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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