1 pcs blue,black metal active buzzer module low-trigger buzzer control boar

ITEM NAME:1 pcs blue,black metal active buzzer module low-trigger buzzer control boar F2K7 1 pcs blue,black metal active buzzer module low-trigger buzzer control boar F2K7 Module Interface Description (3-wire): 1, VCC external 3.3V-5V voltage (which can be connected directly with the 5v microcontroller and 3.3v microcontroller); 2,GND external GND; 3, I / O external microcontroller IO port. Color: blue,black Material: metal the module uses S8550 transistor drive; with fixed bolt holes for easy installation small board PCB size: 3.2cm * 1.3cm; when the I / O port input low, buzzer sound. Package Contents: 1 X active buzzer module Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.