The Arduino Mega interfaces with a microphone sound sensor module to detect sound levels and frequencies, ideal for audio monitoring, sound-activated systems, and noise measurement applications in ...

[](https://youtu.be/CbovaHqvdsM) [YouTube video](https://youtu.be/CbovaHqvdsM) KY-038 (KY-037) Sound ...

I have already made some devices using SeeedStudio’s Seeeduino Nano microcontroller boards and Grove Sensors. In this post I am going to show you how to make a simple sound activated electronic switch ...

The Circuit diagram of smart whistle counter is shown in figure-1, It is based on Arduino Mega 2560 board. LM393 based sound sensor module is used for detection of sound of whistle. It operates at 5V ...