Noise Pollution Logger Kit with ESP32
Noise Pollution Logger Kit with ESP32 — Real-Time B-Format Ambisonics for Environmental Monitoring
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Monitor urban soundscapes or industrial noise with professional-grade spatial audio recording. This kit lets you capture, process, and log sound directionality using a four-microphone array that computes B-format ambisonics on the ESP32 in real time — a powerful tool for environmental engineers and acoustic researchers.
What You'll Build
A portable, mains-powered noise logger that outputs four-channel B-format audio (W, X, Y, Z) streamed via I2S and replicated through dual speakers and a line-out jack. You'll also create a basic logging interface to timestamp and store sound levels to an SD card (not included, but easily integrated).
What You'll Learn
- Configuring multiple I2S microphones on a single ESP32
- Implementing B-format ambisonic encoding algorithms in C++
- Interfacing a DAC for multi-channel audio output
- Building a complete environmental monitoring device with enclosure and power management
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| INMP441 I2S Mic | 4 |
| MCP4728 DAC | 1 |
| PAM8403 Amp | 2 |
| 3W 8Ω Speaker | 2 |
| 4.7kΩ Resistors | 10 |
| 100nF Caps | 15 |
| PCB Prototype Board | 3 |
| 3.5mm TRS Jack | 4 |
| Enclosure Box | 1 |
| 5V 2A PSU | 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 kit is built for environmental engineers deploying noise monitoring stations, B.Tech ECE/EEE students working on final-year DSP projects, and researchers at institutions like IIT, NIT, or IISc exploring spatial audio applications. If you need to prove compliance with CPCB noise norms or capture directional sound data for smart city initiatives, this is your starting point.
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?
Every kit includes an AI companion that guides you step-by-step. You can also message us on WhatsApp for human expert backup within 24 hours.
Can I integrate this kit with cloud platforms for remote monitoring?
Yes, the ESP32 has built-in Wi-Fi. The AI companion includes instructions to push B-format data to services like ThingSpeak or AWS IoT.
Does this kit require advanced soldering skills?
Yes, you'll solder surface-mount INMP441 mics and fine-pitch components. We recommend experience with PCB prototyping. The AI companion provides clear soldering video guides.
What audio formats can I export?
The native output is raw WAV B-format channels. You can convert to Ambix or FuMa using free tools like the IEM Plugin Suite.
Environmental — Four-microphone array with INMP441 I2S mics computes B-format ambisonics encoding in real time on ESP32.
What's in this kit
- ESP32 Dev Board
- INMP441 I2S Mic x4
- MCP4728 DAC
- PAM8403 Amp x2
- 3W 8Ω Speaker x2
- 4.7kΩ Resistors x10
- 100nF Caps x15
- PCB Prototype Board x3
- 3.5mm TRS Jack x4
- Enclosure Box
- 5V 2A PSU
- 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