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Piezoelectricity is the electric charge that accumulates in certain solid materials (such as crystals, certain ceramics, and biological matter such as bone, DNA and various proteins) in response to applied mechanical stress.

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How are multiple frequencies played through a speaker/buzzer without distorting eachother?

I have an idea for an Arudino project which is essentially a piezo buzzer music machine that I will be able to program sheet music into. … I've looked around to find similar projects but everyone I find only uses one or two piezo buzzers with the arduino tone(); library. …
Cal Hensley's user avatar