8Arduino Piano
In this project we’ll use some momentary pushbuttons and a piezo sounder to create a simple piano.
PARTS REQUIRED
Arduino board
Breadboard
Jumper wires
Piezo sounder
8 momentary tactile pushbuttons
8 1k-ohm resistors
HOW IT WORKS
Each pushbutton in our project (see Figure 8-1) is connected to an Arduino pin, and when the pushbutton is pressed, the piezo sounder will emit one of eight notes.
FIGURE 8-1: A momentary pushbutton and its circuit
When pressed, a pushbutton completes a circuit, turning it on. As soon as the button is released, ...
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