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SKU: 260606005506
Warranty : 3 Days
৳ 90.05
Category: Buzzer
Additional Information
Characteristics of passive buzzers:
(1) Passive buzzers do not have an oscillator inside, so they cannot be made to sound by using a DC signal. They must be driven by a 2K~5K square wave. (2) The sound frequency is controllable, and the "Doremifasolasi" effect can be produced. (3) In some special cases, a control port can be reused with an LED
Characteristics of active buzzers:
(1) Active buzzers have an oscillator inside, so they will sound as soon as the power is turned on (2) Program control is convenient, and a high or low level of the microcontroller can make it sound, but passive buzzers cannot do this.
Note: The "source" here does not refer to the power supply. It refers to the oscillator.
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৳ 90.05
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