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Passive Buzzer Module Low Level Trigger
Description:
1.Module use 9012 transistor drive
2 working voltage 3.3V-5V
3. with fixed bolt holes, easy to install
4. PCB size: 3.3cm * 1.3cm
Module interface description (3 wire):
VCC external connect 3.3V-5V voltage (which can be connected directly with the 5V MCU and 3.3V chip)
GND external connect GND
I/O external connect microcontroller IO port
Package Included:
10 * Passive buzzer module