Noise Pollution Heat Calendar Kit: Build a 30-Day Noise Heatmap with ESP8266

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 invisible sound into a living data canvas. This kit captures hourly ambient noise levels for an entire month and turns them into a color‑coded calendar reminiscent of GitHub’s contribution graph. Whether you’re tracking traffic noise near a school or mapping nightclub sound bleed in a residential colony, you’ll build a device that reveals patterns no single reading can show.

What You'll Build

You’ll construct a standalone logger that samples noise through a MAX9814 microphone every hour, stamps each reading with a DS3231 real‑time clock, and saves the average dB value onto a microSD card. A 0.96‑inch OLED provides instant feedback. After 30 days, the ESP8266 serves a local web page where each day becomes a row and each hour becomes a square — darker green means louder. Those visual heat blocks expose rush‑hour hum, midnight silence, and unexpected spikes you never noticed.

What You'll Learn

• Interface an electret microphone with an ADC and calibrate readings for realistic dB SPL values
• Program the DS3231 RTC to timestamp sensor data with second‑level accuracy
• Log structured CSV data onto a microSD card and parse it into a 2D array for visualization
• Deploy an ESP8266 web server that renders a dynamic HTML5 canvas heatmap using AJAX

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

CBSE Class 11‑12 students pursuing data‑driven investigatory projects will find a complete experimental setup ready for documentation. B.Tech ECE and EEE undergraduates can prototype a long‑duration IoT sensor node for hackathons like Smart India Hackathon. ATL Tinkering Labs gain a ready‑to‑assemble module for teaching environmental sensing and visual analytics, while hobbyists get a satisfying blend of hardware and data art.

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.