Music-Synchronized Fountain with Arduino Mega & Relay Kit
Build a Music-Synchronized Fountain with Arduino Mega & Relay Kit - LED Rings Illuminate Each Jet in Colour
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 any water body into a beat-driven spectacle. This Arduino Mega-powered kit controls eight 12V solenoid valves on fountain nozzles, sequencing them perfectly to the music's BPM while four 24-LED WS2812B rings cast synchronised colour washes on each jet. Ideal for public installations, architectural water features, or interactive art projects.
What You'll Build
A complete musical fountain controller that uses a MAX9814 microphone amplifier to capture ambient music in real time, processes the audio with the Arduino Mega, and triggers solenoid valves through an 8-channel relay module. The DS3231 RTC lets you schedule pre-programmed fountain shows, while four LED rings illuminate the water with dynamic colours that change with the beat. The system is housed in a waterproof enclosure for outdoor durability.
What You'll Learn
- Audio beat detection and BPM extraction using MAX9814 and Arduino's digital signal processing libraries
- Controlling inductive loads (solenoid valves) with relay modules and suppressing voltage spikes using 1N4007 flyback diodes
- Addressable LED programming with the FastLED library to create colour patterns synchronised to music
- Time-based automation with DS3231 real-time clock for unattended fountain show scheduling
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Mega 2560 | 1 |
| 8-ch Relay Module | 1 |
| WS2812B 24-LED Ring | 4 |
| MAX9814 Mic Amp | 1 |
| DS3231 RTC | 1 |
| 1N4007 Diode | 10 |
| 470? Resistors | 5 |
| 1000�F 6.3V Caps | 3 |
| 100nF Caps | 15 |
| 12V Solenoid Valve | 8 |
| 5V 5A PSU | 1 |
| PCB Prototype Board | 3 |
| 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
This advanced kit is designed for engineering students (B.Tech/M.Tech in ECE, EEE, or Mechatronics) working on final-year projects, IoT enthusiasts, and professionals creating interactive water displays for events, malls, or public plazas. It's also used by Smart India Hackathon teams needing quick prototyping of large-scale installations, and by advanced ATL mentors demonstrating integration of hardware and digital signal processing. Ideal for students at IITs, NITs, VIT, and BITS Pilani.
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 on the box to access your AI build companion, trained specifically on this musical fountain project. You can also message us on WhatsApp for direct engineering support.
Can I use this kit with 220V AC solenoid valves?
No, this kit is designed exclusively for the included 12V DC solenoid valves. Using AC valves would require additional solid-state relays and poses a safety hazard. The AI companion can advise on safe expansion if needed.
Does the fountain react to any type of music, or only specific genres?
The MAX9814 microphone picks up ambient audio, and the Arduino firmware extracts BPM from any rhythmic source - pop, classical, Bollywood, or live performances. It works best with tracks that have a clear beat, but you can adjust sensitivity in code.
Can I expand beyond 8 jets later?
The Arduino Mega has enough digital I/O to add more relay modules for additional valves. Your AI companion includes guidance on expanding the code and wiring for extra channels.
Solenoid valves on fountain nozzles sequence to music BPM. LED ring illuminates each jet in colour.
What's in this kit
- Arduino Mega 2560
- 8-ch Relay Module
- WS2812B 24-LED Ring x4
- MAX9814 Mic Amp
- DS3231 RTC
- 1N4007 Diode x10
- 470? Resistors x5
- 1000�F 6.3V Caps x3
- 100nF Caps x15
- 12V Solenoid Valve x8
- 5V 5A PSU
- PCB Prototype Board x3
- Waterproof Enclosure
- Soldering Iron
- Solder Wire
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.
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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