KY-006 Small Passive Buzzer Module Compatible for Arduino
ab 1,11 €
The characteristics of passive buzzers are 1 Passive buzzers do not have an oscillator inside, so they cannot beep if a DC signal is used. It must be driven by a 2K~5K square wave. 1 Active buzzers have an oscillator inside, so they will beep as soon as the power is turned on.
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