Sounding object (2016) - Arduino step sequencer.
Oracolo is a interactive sounding object: something between an electronic music instrument and a sculpture able to create sounds. An Arduino board is the audio engine that create 8bit sounds. A shield with potentiometers realize a step sequencer with six steps allowing the user to change the pitch of each step.
Schematics and details of the step sequencer shield can be found here.
Here some video of Oracolo played in different places.