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Passive Buzzer 5V Alarm Sound Module

Passive buzzer, the oscillation frequency required to enter the I / O ports, a buzzer will sound.


  • Module using S8550 transistor drive
  • Operating Voltage:3.3-5V
  • With fixed bolt hole for easy installation
  • Board Size:3.2cm * 1.3cm
  • Module Interface Description (3-wire) : 1. VCC external 3.3V-5V voltage (5v microcontroller can be directly connected to the microcontroller and 3.3v).
  • External GND GND
  • I / O external microcontroller IO port


  • 1 x Passive Buzzer 5V Alarm Sound Module
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