If you love playing music and making electronics, why not combined these interests and create your own Arduino musical instrument? Instructables member audreyobscura has put together a fantastic set of instructions detailing how you can build your own xylophone.
The xylophone uses piezo sensors to detect when each note has been hit and then uses an Arduino Mega to turn this into a MIDI signal, allowing you to modify the music you make on your computer! If you are keen to get started on this project check out the following link.
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