Simple Sound Alarm This repository contains the source code and documentation for creating a simple sound alarm system using a sound sensor, Arduino, a speaker with an SD card module, an SD card, and ...

Project Overview Components: Arduino, sound sensor module, LED, resistor (220Ω or 330Ω), jumper wires, and breadboard. Functionality: When the sound sensor detects noise above a specific threshold, ...

They’re using a cheap sound sensor module and an Arduino to catch instantaneous photographs, with students caught in the act of popping balloons.