Buzzer passief 3-5VDC module

Beschrijving

A module using 9012 transistor drive

– Operating voltage 3.3V-5V

– with fixed bolt hole for easy installation

– small plates PCB size: 3.3cm * 1.3cm

pinout:

– VCC external 3.3V-5V voltage (5v microcontroller and can be directly connected to 3.3v MCU)

– External GND to GND

– I / O external microcontroller IO port