This is a course project of Principle of communiation. Put 8 buttons on the UI which represents the 8 keys of piano. When a button is clicked, a corresponding number will be sent to the singlechip by serial port. When the singlechip received the number, it will generate wave in corresponding frequency. The wave will be omitted with the wire. And another wire will receive the wave and
C# for the UI
C for the singlechip