Houseplant Monitor Kit with Blockchain Anchored Data - Arduino Portenta C33
Houseplant Data Marketplace: Blockchain-Anchored Monitor Kit 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.
With this kit, you'll build a self-powered sensor node that monitors soil moisture, humidity, light, and temperature for your indoor plants. Every reading is cryptographically signed by the Portenta C33's onboard secure element, then published via TLS-encrypted MQTT to a blockchain-anchored agricultural data marketplace. Whether you're an agri-tech developer or a plant science researcher, you'll generate verifiable, tamper-proof environmental records that can be monetized or used for predictive modelling.
What You'll Build
A complete, solar-rechargeable monitoring system for up to three houseplants. The unit logs timestamped data locally to an SD card, while simultaneously broadcasting signed payloads to a decentralized data exchange. You'll be able to prove the origin and integrity of your sensor data, participate in a marketplace that rewards high-quality agricultural data, and access your plant's history from anywhere via a blockchain explorer.
What You'll Learn
- Sign IoT data using hardware-backed cryptographic keys on the Arduino Portenta C33
- Configure and deploy a TLS-secured MQTT client for secure cloud communication
- Interact with a public blockchain testnet to anchor sensor data in a trusted ledger
- Design a self-sustaining power system using solar panels and Li-Ion battery management
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 |
| 4.7k? 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 |
| 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
Ideal for B.Tech ECE/EEE final-year students building capstone projects around decentralized agri-tech, participants in the Smart India Hackathon agriculture track, and researchers at IIT/NIT/VIT/BITS exploring verifiable environmental data logging. If you're an early-stage agri-tech startup validating a data marketplace MVP, this kit gives you a head start.
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 that knows every pin connection and code snippet. For personalized help, our team is available via WhatsApp and will respond within a few hours.
How do I anchor data to a blockchain marketplace?
The AI companion walks you through configuring an Infura endpoint and deploying a simple smart contract on the Sepolia testnet. You'll send signed JSON payloads via MQTT to a Streamr node, where the data can be listed in their data union for token rewards. No prior blockchain experience is needed-the code templates handle the heavy lifting.
Can I use this kit outdoors in India's climate?
The included waterproof enclosure (IP65) and 6V solar panel allow deployment on a balcony or terrace with partial shade. For full sun in monsoon regions, we recommend adding a small rain shield and checking the battery enclosure seals regularly.
What happens if the MQTT connection drops?
The DS3231 RTC timestamps all readings locally on the Micro SD card. When the connection restores, the Portenta C33 publishes a batch of signed historical data with their original timestamps, ensuring the blockchain record remains complete.
Houseplant - 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