Nuts & Volts Magazine (April 2012)
Make Music With Digitally Generated Analog Signals.
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The zip file contains the following:
1. The music box sketch for the Arduino Uno based on the ATMega328
2. The music box sketch for SparkFun’s Pro Micro Arduino compatible
board based on the ATMega32U4 processor (MusicBoxProMicro.ino).
3. A Java jar file called musicboxsupport.jar which contains the software
tools (both in executable and source code forms) necessary to
support the music box’s operation, and to add to or change the
tunes in the music box.
4. An mp3 file of the music box playing Fur Elise.