Greenhouse Soil Manager Kit v3
Soil Manager Kit v3 – Build a Blockchain-Anchored Agricultural Data Network with Arduino Portenta C33
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’ll engineer a fully solar-powered greenhouse station that signs soil moisture, humidity, temperature, and light readings using the Portenta C33’s crypto engine, then publishes them via MQTT TLS to a private agricultural data marketplace—where each data point’s origin is verifiable on-chain. This isn’t a basic sensor logger; it’s an industrial-grade prototype for traceable precision agriculture that you can deploy, extend, or present as a capstone project.
What You'll Build
You’ll assemble and deploy a field-ready monitoring node that streams cryptographically signed environmental data to a blockchain marketplace, enabling farmers, researchers, or agritech platforms to trust the provenance of every reading. The kit integrates multi-sensor fusion across three soil zones, ambient temperature/humidity, light intensity, real-time clock-stamped logging to SD card, and solar charging—all inside a waterproof enclosure. The result is a complete edge-to-blockchain data pipeline that demonstrates hardware-level security for IoT agriculture.
What You'll Learn
- Hardware-signed data authentication using the Portenta C33’s SE050 secure element and ECDSA signatures
- MQTT TLS client implementation with certificate-based encryption for tamper-proof data transport
- Solar energy harvesting and Li-ion battery management (TP4056 + LM2596) for perpetually powered outdoor nodes
- Multi-sensor fusion (3x analog soil moisture, DHT22, BH1750) and accurate timestamping with the DS3231 RTC for blockchain anchoring
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Portenta C33 | 1 |
| Portenta Mid Carrier | 1 |
| Soil Moisture Sensor | 3 |
| DHT22 | 1 |
| BH1750 | 1 |
| DS3231 RTC | 1 |
| MicroSD Module | 1 |
| Solar Panel 6V 2W | 1 |
| TP4056 Module | 1 |
| 18650 Cell | 2 |
| LM2596 Buck Converter | 1 |
| 4.7kΩ Resistors | 5 |
| 100nF Caps | 10 |
| PCB Prototype Board | 2 |
| 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: Portenta Mid Carrier with all peripherals and power supply verified for stable operation |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project, covering TLS certificate generation, blockchain smart contract interaction, and MQTT broker setup |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance for signing sensor data and pushing to a testnet |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
B.Tech ECE and CS final-year students building blockchain-IoT capstone projects, Smart India Hackathon teams targeting agritech traceability, researchers at IIT/NIT/VIT/BITS prototyping decentralized agriculture solutions, and professionals designing hardware-anchored data integrity systems. If you need a credible, field-tested prototype that demonstrates secure edge-to-chain communication, this kit gives you a complete, production-ready starting point.
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?
Our AI companion provides instant debugging tips, and you can message us on WhatsApp for manual assistance. We respond within 24 hours.
Do I need prior blockchain experience?
No blockchain expertise is required. The AI companion guides you through deploying a local testnet and generating cryptographic keys; we provide pre-built scripts for the Portenta C33.
Can this kit work without internet connectivity?
Yes, the node logs all readings with high-accuracy RTC timestamps to the SD card. Data can be uploaded later when connectivity is available, and the signature remains verifiable on-chain.
Is the solar panel sufficient for continuous operation?
With the included 18650 cells and TP4056 charging, the system runs indefinitely in typical Indian sunlight, provided the panel receives 4-6 hours of direct exposure daily. We include power budgeting guidance.
Greenhouse — C33 with hardware-signed sensor readings posts to a blockchain-anchored agricultural data marketplace via MQTT TLS.
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