Making sounds with the tone() function.
Collaborative video game controller.
A "singing" piezo buzzer that changes pitch according to a potentiometer and a tilt switch.
Wondered what music the weather makes? This device is a theremin that changes pitch based on the heat- higher temperature, lower pitch.
A modular carpet that turns movement into energy and wraps up quick for flashmob situations.
Vaughn Johnson UCF-Spring 2023-DIG3602C-Davis Project 12
Use LX8201 chip to drive piezo air pump, for head massage. There is distinguished advantage with piezo air pump since it is true silent.