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 ...

The recommended operating voltage is 5V what makes it compatible to almost all 5V Arduino microcontroller boards. Maybe it works on 3.3V but I have not tried it yet. To understand the functionality of ...

Here is a motor speed sensor module, the major goal is to check the rate ... After construction and pre-flight test, the module was connected to an Arduino board and measured the rotation per minute ...