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Firgelli Robots Active Buzzer Unit- Low Level Electric Potential Trigger

Active Buzzer Unit - Low Level Electric Potential Trigger

$3.15

Active Buzzer Unit

Description:

Driven by C8550 PHP transistor, this active buzzer unit is well designed and made. It starts to buzz as soon as I/O interface outputs low electric level. An LED is installed to indicate signal after power is on. Easy to use and install.

Features:

* Power supply: DC 5V
* Mounting screw: M3
* PCB measurement: 24.8 * 19.3 * 1.6mm
* VCC-> external power GND -> GND  OUT -> I/O

Testing Code:

#include

#define uchar unsigned char

#define uint unsigned int

void main()

{

P0=0x00;

P1=0x00;

P2=0x00;

P3=0x00;

while(1) ;

}

0.2 lb





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