iot - Using a "big sound" module with arduino to create a decibel meter - Stack Overflow
Arduino Sound meter - Hackster.io
Analog Style VU Meter on OLED Display – Arduino Compatible - Electronics-Lab.com
DIY SOUND METER in decibels using KY-038 Sound sensor module, 0.96" OLED Display and arduino nano - YouTube
Sound Level Meter with ESP8266, Arduino and iOS: IoT device for sound monitoring | Thiago Ribeiro
I am sure you know those volume meters we mostly find in professional recording studios. That's what this project is ab… | Arduino projects, Arduino, Arduino shield
Arduino based Decibel meter with Sound Sensor | IoT Projects Ideas