Touching the strips determines which notes will be played. A piezo disc hiding below the circuit board detects how hard the notes have been strummed or tapped. The ATmega328 running the ...

It’s a surprise then in the video to see that it is instead composed of a large array of the commonly available piezoelectric disk sounders that can be found in a multitude of cheap toys and ...

Piezoelectric materials deform (stretch or ... Ranjan's team discovered that when the thickness of a circular PZT disk was ...