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arduino-piano-en.md

Musical Maker: The Arduino Piano

The Electronic Piano project is a fun way to explore the physics of sound. By mastering frequencies and duty cycles, you can turn a few simple buttons into a melodic instrument.

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The Tone() Function

The heart of this project is the tone() function in the Arduino IDE.

  • Frequency: Every musical note has a specific frequency (e.g., Middle C is 262 Hz).
  • The Process: When you press a button, the Arduino sends a square wave at that specific frequency to a piezo buzzer, which vibrates to create the sound.

Hardware Components

  • Arduino Uno/Nano: The frequency generator.
  • Push Buttons (x7): One for each note (Do-Re-Mi-Fa-So-La-Ti).
  • Piezo Buzzer: The speaker/output device.
  • 10k-ohm Resistors: For stable button inputs.

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Expanding the Piano

Once you have the 7 basic notes working, you can add a Potentiometer to change the octave (making the notes higher or lower) or add more buttons to create a full chromatic scale. This project is a gateway into the world of digital synthesizers and MIDI controllers.

ข้อมูล Frontmatter ดั้งเดิม 

title: "Arduino Electronic Piano"
description: "Make some noise! Learn how to use push buttons to play different musical tones, turning your Arduino into a 7-note digital piano."
category: "Audio & Sound"
difficulty: "Easy"