Crop Rain Monitor for Farms Kit v2
Crop Rain Monitor for Farms Kit – Assemble a Self-Reporting METAR Weather Station
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Put a fully automated rainfall and weather station at the centre of your farm’s decision loop. This kit lets you solder, wire, and program an ESP32-based monitor that reads local rain, pressure, humidity, UV index, and magnetic field data, then wraps it into an ICAO METAR-compliant message every 30 minutes and posts it directly to your web endpoint—ready for crop insurance, irrigation planning, or a custom farm dashboard.
What You'll Build
You will build a solar-powered field unit enclosed in a waterproof box, capable of running unattended for weeks. The OLED displays real-time readings, while the RTC stamps every METAR report with a precise timestamp. The onboard MicroSD logs a full sensor history, and the 433 MHz antenna extends range for remote site connectivity. The output is a professional, interpretable ICAO METAR string that any aviation or agricultural API can ingest.
What You'll Learn
- Interface multiple I2C and analogue sensors with an ESP32 on a custom PCB
- Format raw sensor data into a standardised METAR weather observation string
- Implement low-power, solar-charged field deployment using an LM2596 buck converter and TP4056
- Debug and verify sensor integrity with hall-effect rainfall counting and UV index calibration
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| DHT22 | 1 |
| BMP280 | 1 |
| ML8511 UV | 1 |
| A3144 Hall Sensor | 2 |
| Rain Sensor | 1 |
| DS3231 RTC | 1 |
| MicroSD Module | 1 |
| LM2596 Buck Converter | 1 |
| 0.96in OLED | 1 |
| 433MHz Antenna | 1 |
| 100nF Caps | 15 |
| PCB Prototype Board | 3 |
| Waterproof Enclosure | 1 |
| Solar Panel 6V 2W | 1 |
| TP4056 Module | 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
Agri-tech developers, B.Tech ECE/EEE students building automated farm monitoring, precision irrigation specialists, and Smart India Hackathon participants tackling agriculture challenge statements. Also ideal for researchers at IITs, NITs, or agricultural universities who need a reproducible, solar-powered METAR station for field trials. If you already have embedded systems experience and want to produce standardised weather reports without reinventing the code base, this kit is your shortcut.
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?
Open the AI companion by scanning the QR code in your kit box; it can walk you through wiring diagrams, code uploads, and sensor calibration. If the problem still persists, message our WhatsApp support with photos and we respond within a few hours.
Can this kit survive a full monsoon season in the field?
The waterproof enclosure is rated IP65, and all cable glands are included. We validated the sensors under simulated heavy rainfall during design; the hall-effect counting mechanism has no exposed moving parts, so mud and splash rarely affect operation.
Does the solar panel provide continuous power even during cloudy monsoon weeks?
The 6V 2W panel combined with the TP4056 charging module and a 18650 battery (not included) can sustain the station through several consecutive overcast days, especially because the ESP32 deep-sleep routines in our example code keep average consumption very low between transmissions.
How do I customise the web endpoint to my own server?
The AI companion includes a step-by-step configuration file where you replace the sample URL and API key with your own. It also explains how to validate that the METAR string arrives correctly using Postman or a simple browser test.
Agricultural Rainfall — Assembles ICAO METAR coded weather report every 30 min from local sensors. Posts to web endpoint.
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