Hello, I'm looking for a program (or a trick) that would vary the voltage of a pump automatically according to the frequency of sound emitted (a YouTube video for example). The project is that the water fountain takes a certain height depending on the music, here, low = 20cm, average = 30cm and acu…

Vary the voltage of a water fountain pump according to the frequency

Johan_Ha April 16, 2018, 5:33pm 2

If the sound source is music, there's not one frequency present, but several.

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