Acoustic Rain Gauge
Acoustic Rain Gauge Kit – Analyse Raindrop Size Distribution with Arduino Mega
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Transform a waterproof metal plate into a sensitive rain sensor that classifies every raindrop by its unique impact sound. This Arduino Mega-powered acoustic gauge listens to rain, picks apart pitch signatures, and logs drop size distribution for hydrological research, smart farm irrigation, or building a hyperlocal weather station that understands precipitation microstructure.
What You'll Build
A fully outdoor-rated rain gauge that captures and analyses raindrop impacts in real time. The stainless steel plate funnels acoustic vibrations into a MAX9814 microphone amplifier, processed by the Arduino to separate small drizzle drops from large monsoon raindrops. Data is timestamped by a DS3231 RTC, stored on microSD, and displayed on a crisp OLED — all running autonomously on solar power with 18650 backup. Mount it on a rooftop or open field and collect weeks of rainfall fingerprint data without maintenance.
What You'll Learn
- Acoustic signal acquisition and filtering using the MAX9814 mic amp with Arduino Mega
- Pitch detection algorithms that map impact frequencies to drop diameters
- Integrating DS3231 real-time clock and microSD for long-term field data logging
- Designing solar-powered outdoor circuits with TP4056 charge management and 18650 lithium cells
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Mega 2560 | 1 |
| MAX9814 Mic Amp | 1 |
| DS3231 RTC | 1 |
| MicroSD Module | 1 |
| 0.96in OLED | 1 |
| LM2596 Buck Converter | 1 |
| 100nF Caps | 10 |
| 10kΩ Resistors | 5 |
| PCB Prototype Board | 2 |
| Waterproof Metal Plate | 1 |
| Waterproof Enclosure | 1 |
| Solar Panel 6V 1W | 1 |
| TP4056 Module | 1 |
| 18650 Cell | 2 |
| 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
This advanced project suits environmental engineering students, IoT developers, and weather enthusiasts in India. It is especially valuable for B.Tech ECE/EEE final-year projects, Smart India Hackathon teams building smart agriculture prototypes, and researchers at IIT/NIT/VIT deploying custom rain sensors. If you need reliable, field-ready data on rainfall microstructure, this kit provides the hardware and software blueprint.
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, triggered by the QR code, walks you through each assembly and coding step. If you need a human touch, our WhatsApp support line is active six days a week.
Can this gauge distinguish drizzle from heavy rain?
Absolutely. The pitch analysis algorithm is tuned to separate light mist droplets (high frequency, low amplitude) from large raindrops (low frequency, strong impact), logging each event with a timestamp to the SD card for later statistical analysis.
Is the kit built to survive an Indian monsoon?
Yes. The included metal plate and IP65-rated enclosure protect the electronics, while the solar panel and battery management circuit are tested under sustained rain and humidity conditions typical of the subcontinent.
Do I need prior soldering experience?
The kit assumes you are comfortable with through-hole soldering — a soldering iron and solder wire are included. The AI companion provides clear PCB assembly guidance, but the skill level is advanced; patience and care are essential.
Microphone inside a metal plate distinguishes raindrop impact sounds by pitch to count drop size distribution.
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