They’re using a cheap sound sensor module and an Arduino to catch instantaneous photographs, with students caught in the act of popping balloons. The goal here was to keep things as simple as ...

For a lonely person, elderly or otherwise, the sound ... piezo buzzer and a handful of LEDs. At the heart of this build is a pair of ESP8266 Wemos D1 minis and an Arduino sound sensor module ...

Another element that we are going to use on this experiment is Piezo Buzzer. So what is it ? It’s an electronic device commonly used to produce and signaling a procces that is happening through a ...