How is sound produced and controlled (what are the mechanical actuators?)
Two servos will be stacked together where they will get their orders from the arduinos. Bottom servo will allow the top servo move left to right. The top servo will have the mallet attached to it. The top servo’s purpose is to make the mallet move up and down allowing it to hit the notes on the xylophone. Sound will be produced acoustically by the tap of the mallet. The mallet will be taped to a solenoid, which is controlled by an Arduino board.
How are all the components powered?
What’s the musical range of the instrument?