ESP32 Noise Pollution Logger: Build with Offline Edge AI Voice Control Kit
ESP32 Noise Pollution Logger: Build with Offline Edge AI Voice Control
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Assemble a fully autonomous noise monitoring system that listens for specific voice keywords—like “alarm” or “loud”—directly on an ESP32 microcontroller. This isn't a cloud‑dependent gadget; it runs a TensorFlow Lite model right on the chip, triggering relays and LEDs the moment a keyword is detected. The OLED screen logs real‑time audio levels and keyword events, making it a perfect prototype for Smart India Hackathon environmental challenges or campus‑level noise‑compliance tools.
What You'll Build
You will solder and integrate an I2S INMP441 MEMS microphone, a 0.96‑inch OLED display, and two relay modules onto a PCB prototype board. The ESP32 processes audio in real time, spots your chosen keywords, and immediately drives the relays—for example, to sound an alert or switch off a noisy appliance. Every keyword detection is timestamped and displayed, creating a self‑contained noise incident logger that needs zero internet connectivity.
What You'll Learn
- Train and deploy a TensorFlow Lite audio model on an ESP32 for offline edge AI.
- Interface high‑quality I2S digital microphones with the ESP32 for low‑latency audio capture.
- Control AC/DC loads safely using relay modules driven by ESP32 GPIO pins.
- Design, solder, and debug a custom PCB prototype from schematic to a working device.
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| INMP441 I2S Mic | 1 |
| 5V Relay Module | 2 |
| 0.96in OLED | 1 |
| 5mm LED | 3 |
| 4.7kΩ Resistors | 5 |
| 100nF Capacitors | 10 |
| PCB Prototype Board | 2 |
| 5V 2A Power Supply | 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
Designed for B.Tech ECE and EEE students working on IoT or environmental monitoring projects, Smart India Hackathon teams building offline voice control systems, and engineering enthusiasts from IIT, NIT, VIT, and BITS who want to master edge AI on real hardware. It’s equally suited for final‑year project prototypes that must function without cloud dependency.
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 included in the box to access the AI build companion that walks you through every solder joint and code upload. You can also share a photo on WhatsApp, and our support team will help you debug within hours.
Does this kit need an internet connection or cloud subscription?
No, the keyword spotting runs entirely on the ESP32. Once you flash the model, the system works offline—no Wi‑Fi, no cloud account, no recurring fees.
Can I train the ESP32 to recognize my own keywords?
Absolutely. The AI companion includes a guide to retrain the model using Edge Impulse or TensorFlow Lite Model Maker. You can define custom keywords like “quiet”, “danger”, or even regional language commands.
Do I need prior soldering experience to complete this kit?
This is an advanced kit, so basic soldering
Environmental — ESP32 runs edge voice keyword spotting. Detected keywords control GPIO without cloud — fully offline AI control.
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