LoRa Soil Frost Sensor Network Kit with DS18B20 Nodes
Build a LoRa-Connected Ground Frost Sensor Network with Six DS18B20 Nodes
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Ground frost damages roots, delays planting, and skews soil moisture data. This kit lets you build a distributed sensor network that tracks frost formation at six distinct soil depths, transmitting readings via LoRa to a central logger. Deploy it in an orchard in the Kullu Valley, a potato field near Ooty, or a research plot in Himachal-wherever knowing the exact freeze line matters for crop decisions or climate studies.
What You'll Build
You assemble six battery-powered DS18B20 sensor nodes, each waterproof and buried at a different depth. These nodes wake periodically, measure temperature, and send data to a RA-02 LoRa receiver connected to an ESP32 base station. The result is a real-time frost profile that graphs how cold penetrates the soil profile, letting you pinpoint the exact hour the 0�C line crosses critical root zones.
What You'll Learn
- Configure long-range LoRa communication with RA-02 modules and 433MHz antennas across outdoor distances
- Power sensor nodes from 18650 lithium cells with TP4056 charging circuits for weeks of autonomous operation
- Calibrate and multiplex six DS18B20 digital thermometers on a shared 1-Wire bus with Arduino Nano
- Design a soldered prototype board that withstands soil moisture and temperature swings without signal loss
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| Arduino Nano | 6 |
| RA-02 LoRa | 7 |
| DS18B20 Waterproof | 6 |
| 433MHz Antenna | 7 |
| 18650 Cell | 6 |
| TP4056 Module | 6 |
| 4.7k? Resistors | 10 |
| 100nF Caps | 20 |
| PCB Prototype Board | 7 |
| 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
Agricultural researchers and B.Tech ECE/Agri students running field trials on frost injury in high-altitude crops. It's ready for Smart India Hackathon teams building low-cost weather grids, IIT/NIT/VIT research groups needing ground-truth data for satellite frost models, and ATL Tinkering Lab facilitators demonstrating IoT across soil layers. The soldered assembly suits those with prior electronics prototyping experience.
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?
The AI companion walks through each node assembly and LoRa pairing; if that's not enough, our WhatsApp team responds within hours with specific debugging steps for your sensor network.
How far can the LoRa nodes transmit through soil?
In open air, the RA-02 modules cover up to 2 km; in soil with the antenna partially buried, expect reliable 200-400 m range, enough for a single small-plot field deployment.
Can I add more sensor nodes to the same network?
Yes, the protocol supports up to 254 node addresses. The base station firmware can be extended to listen for additional nodes with minor code tweaks, and our AI companion includes guidance on scaling.
Is this kit suitable for tracking frost in vineyard or orchard root zones?
Absolutely. The six depths you choose can mirror feeder-root horizons, giving you a precise freeze-line time series that directly informs frost protection timing like sprinkler activation or wind machine use.
Six DS18B20 nodes at different depths connected over LoRa to monitor frost layer progression in soil profile.
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