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 ...

and another ultrasonic sensor on the inside of the lid for detecting the trash level. On the software side, things are just as straightforward. The code includes two Arduino libraries ...

Each animation has a different Arduino code, but you won't need ... hand closer to or away from the sensor to increase or decrease the volume. While this may sound complicated, the software ...

Some work by sensing sound, some send out light and sense ... PIR Pin “out” connects to Arduino Digital 2 Here is the Arduino code for the Parallax sensor int motion_1 = 2; int light_1 ...