DIY ESP32 Decibel Meter | Professional-Grade Sound Level Measuring Instrument

Published at : 23 Dec 2025

๐—™๐—ฟ๐—ฒ๐—ฒ ๐—ง๐—ฟ๐—ถ๐—ฎ๐—น ๐—น๐—ถ๐—ป๐—ธ ๐˜๐—ผ ๐—”๐—น๐˜๐—ถ๐˜‚๐—บ ๐——๐—ฒ๐˜€๐—ถ๐—ด๐—ป๐—ฒ๐—ฟ: https://altium.com/yt/howtoelectronics

๐—”๐—ฏ๐—ผ๐˜‚๐˜ ๐˜๐—ต๐—ถ๐˜€ ๐—ฉ๐—ถ๐—ฑ๐—ฒ๐—ผ:
"Welcome to our latest DIY project - building a highly accurate Decibel Meter using the ESP32 WiFi Module and a specialized Sound Level Sensor Module. This advanced decibel meter is capable of detecting sound levels ranging from 35 dB to 115 dB.

What sets our decibel meter apart? It is highly accurate and pre-calibrated, meaning it doesn't require any additional calibration from your end. By leveraging the I2C protocol, we will be interfacing the Sound Level Sensor with the ESP32 module, enabling the device to accurately detect and monitor sound levels in decibels (dB SPL).

The cherry on top is the 0.96โ€ณ OLED Display, which will showcase the detected sound levels in real-time. But, we didn't stop there. Not only will you be able to see the sound levels on the OLED display, but we will also demonstrate how to send this data to an IoT platform - in this case, Ubidots. This will allow for graphical visualization and further analysis of the data.

This tutorial is perfect for DIY enthusiasts, tech students, or anyone interested in sound monitoring and IoT. Join us in exploring the potential of the ESP32 WiFi Module and IoT for sound level monitoring. Let's get started!"

๐——๐—ฒ๐—ฐ๐—ถ๐—ฏ๐—ฒ๐—น ๐— ๐—ฒ๐˜๐—ฒ๐—ฟ ๐—ฃ๐˜‚๐—ฟ๐—ฐ๐—ต๐—ฎ๐˜€๐—ฒ ๐—Ÿ๐—ถ๐—ป๐—ธ: https://pcbartists.com/product/i2c-decibel-sound-level-meter-module/

๐—ช๐—ฟ๐—ถ๐˜๐˜๐—ฒ๐—ป๐˜ ๐—ง๐˜‚๐˜๐—ผ๐—ฟ๐—ถ๐—ฎ๐—น & ๐—ฆ๐—ผ๐˜‚๐—ฟ๐—ฐ๐—ฒ ๐—–๐—ผ๐—ฑ๐—ฒ: https://how2electronics.com/diy-accurate-esp32-decibel-meter-spl-with-data-logger/
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