Automated METAR Generator
Build an ICAO-Compliant Automated METAR Weather Station with ESP32
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Picture a self-contained unit on your rooftop or field station, silently collecting environmental data and broadcasting standardised METAR messages every half hour, ready to be consumed by aviation dashboards, smart agriculture platforms, or your own research log. This kit guides you through building exactly that ā an all-weather, solar-powered ESP32 system that thinks in ICAO code.
What You'll Build
You will assemble a weatherproof enclosure housing an ESP32, a suite of calibrated sensors (temperature, humidity, pressure, UV, rainfall), and a custom wind-speed pickup. The firmware polls sensors, retrieves a timestamp from a DS3231 RTC, formats an ICAO METAR string, stores a backup on MicroSD, and POSTs it to the web endpoint you define ā automatically, every 30 minutes, indefinitely.
What You'll Learn
- Calibrate and fuse data from DHT22, BMP280, and ML8511 UV on a single IĀ²C bus
- Design solar power management with a TP4056 charger, LM2596 buck converter, and 6V solar panel
- Construct a Hall-effect anemometer using two A3144 sensors and interpret pulses for wind speed
- Format raw sensor values into a standard ICAO METAR message and push via HTTP to any web API
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| DHT22 | 1 |
| BMP280 | 1 |
| ML8511 UV Sensor | 1 |
| A3144 Hall Sensor | 2 |
| Rain Sensor | 1 |
| DS3231 RTC Module | 1 |
| MicroSD Module | 1 |
| LM2596 Buck Converter | 1 |
| 0.96-inch OLED Display | 1 |
| 433MHz Antenna | 1 |
| 100nF Capacitors | 15 |
| PCB Prototype Board | 3 |
| Waterproof Enclosure | 1 |
| Solar Panel 6V 2W | 1 |
| TP4056 Charging 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
Engineers, researchers, and avid makers looking to pair embedded systems with meteorological data reporting. It suits B.Tech ECE final-year projects, MTech environmental monitoring theses, drone operators needing hyperlocal METAR, and agritech startups deploying automated weather nodes. If you have soldering experience and comfort with Arduino IDE, you have the baseline.
Built and Backed by Compoden
Every Compoden kit ships with an AI build companion trained on this exact project ā 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 from the QR code, type your question, and receive step-specific debugging. For anything beyond that, reach out on WhatsApp with a photo ā our engineers built this kit themselves and respond quickly.
How do I set up the wind speed sensor?
The two A3144 hall sensors and 433MHz antenna are used to build a DIY anemometer that transmits pulse counts to the ESP32. The AI companion includes a breakout diagram and calibration code sample.
Can I send the METAR reports to my own server or an aviation service?
Absolutely. The default firmware posts to a configurable URL ā point it to your own API, a cloud IoT endpoint, or even a local network dashboard.
Will this station survive monsoon rain and heat?
The included waterproof enclosure (IP65-rated) and solar power design with buck converter are built for Indian field conditions. Placement under an eave or sunshade further extends longevity.
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 ā 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
- Breadboard Combo ā 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.
Shipping Information
- Prepaid Orders: ā¹75 for orders up to ā¹999, FREE shipping above ā¹999
- COD Orders: ā¹125 shipping + ā¹50 COD fee = ā¹175 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