In this lesson, you will learn how to make sounds with your Arduino. First you will make the Arduino play a 'musical' scale and then combine this with a photocell, to make a Theremin-like instrument that changes the pitch played as you wave your hand over the photocell.

This guide was first published on Dec 12, 2012. It was last updated on Dec 12, 2012. This page (Overview) was last updated on May 04, 2015.