October 2nd : Assignment 8

I have made a piano for my musical instrument. The instrument consists of 8 different notes — C, D, E, F, G, A, B, C2. In order to make it easier for the user to understand how to play the instrument, the instrument looks like a piano. The keyboard is drawn on the cardboard box, and the user may press the each key to make the sound. The outer box that covers the circuit board and red board is also made to look like a grand piano by making a top cover that could be raised. 

This is the code I used : 

This is the schematic for my instrument : 




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