By adhering a piezo-electric disc to a thin metal plate, and then applying electricity, we can bend the metal back and forth, which in turn creates noise.
It uses a material that’s piezoelectric, it actually changes shape when you apply electricity to it. It’s not like a regular speaker that you might think of. We are going to use a piezo buzzer to make some noise with Arduino.Ī piezo buzzer is pretty sweet.
Arduino board, I am using an Arduino Uno.Programming Electronics Academy members, check out the Audio Boards course to learn about more advanced noise making, and even prototype your own mp3 player!
