#248: Passive Buzzer Module

R17.70

An active buzzer will generate a tone using an internal oscillator, so all that is needed is a DC voltage.

A passive buzzer requires an AC signal to make a sound. It is like an electromagnetic speaker, where a changing input signal produces the sound, rather than producing a tone automatically.

To identify them, if you apply a DC voltage to them and it buzzes, it's an active.

PWM on the Arduino can be used to control the pitch and the volume.

Product Details

1 module driven by 9012 triode
2 working voltage of 3.3 V to 5 V
6 sets of fixed bolt hole, convenient installation
7 small board PCB size: 3.3 cm * 1.3 cm
2 module interface specification (3 wire system)
1 VCC external 3.3 V to 5 V voltage (which can be directly connected to 5 V microcontroller and 3.3 V microcontroller)
2 GND external GND
3 I/O external microcontroller IO port

Product Details

Est. Packaging Size Specifications

N/A

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