Use tone() with Arduino for an Easy Way to Make Noise
Simple keyboard using the tone() function | Arduino
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Arduino tone( )
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Play a Melody using the tone() function | Arduino
Arduino Tone & MP3 Sound with No Shield | Web on Devices
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Arduino Melody Shaper
Play Frequency Tones Using a Simple Keyboard & Arduino : 6 Steps - Instructables
Playing a Scale | Arduino Lesson 10. Making Sounds | Adafruit Learning System
Lab: Tone Output Using An Arduino – ITP Physical Computing
Technoblogy - A Lightweight Alternative to tone
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Simple keyboard using the tone() function | Arduino
arduino uno - Multiple tones with one piezo buzzer - Arduino Stack Exchange
