Arduino Piano
Supplies
Arduino board
Membrane keypad
Buzzer or piezo buzzer
Jumper wires
Battery or USB cable
Wire cutters
Soldering iron and solder (optional)
Step 2: Connect the Membrane Keypad to the Arduino Board
Connect the Membrane Keypad to the Arduino Board
Connect the six pins on the membrane keypad to six digital input pins on the Arduino board, according to the wiring diagram for the keypad and the Arduino board. If necessary, use a soldering iron and solder to make the connections.
Connect the Buzzer or Piezo Buzzer to the Arduino Board
Connect the positive lead of the buzzer or piezo buzzer (usually red) to a digital output pin on the Arduino board, and connect the negative lead (usually black) to a ground pin on the Arduino board.
Write the Code
Use the Arduino IDE (Integrated Development Environment) to write the code that allows the Arduino board to detect keypad events and play the corresponding music. The code should include the following