Arduino Sound - Part 1: This is the first in a series of articles about generating sound with an Arduino. The goals are to generate good quality sound which can be used to play simple tones, stored music, sampled sound, and even act as a MIDI synthesizer. I will cover the basic design, including code and hardware that anyone can use to add sound to Arduino microcontroller projects.

Arduino Sound Part 2: Hello World: This is the second in a series of articles about generating sound with an Arduino. In this article we take a small step; “Hello World” for Arduino sound. We prepare for our future experiments by hooking up a PC or powered speaker so we can hear the Arduino sing. Also see Arduino Sound Part 3: Playing a Melody.