"In our previous two tutorials (see here and here), we created a
Simon-type game using the Arduino, a hardware platform for simple,
and not so simple, electronics projects.
"We placed three buttons and three LEDs on to something called a
breadboard, and wrote a small program that would send a random
sequence to the LEDs, which the player would then need to replicate
by pressing the buttons in the same order. Each time you got the
sequence correct, the sequence would be extended by one and
repeated. The further into the random sequence you got, the higher
you scored.
"In this, part three, we're going to build on what we already
created and add another important feature - sound! So, get the
hardware out, make some coffee, and prepare for some hardware
hacking fun...
"Adding sound to our project is actually very easy, and it has a
dramatic effect on the playability of the game. If you purchased a
starter pack of components with your Arduino kit, there's a good
chance that the kit included some kind if Piezo element. These are
usually small, black and circular (about the same size as the
average coat button), with a small hole in the top. They can be
used to generate sound, as well simple sound capture, which is why
they're usually included in starter kits."
