# 51 MCU buzzer operation

It is very simple to make the buzzer sound. Add a low level to the buzzer so that the current flows through and the buzzer will sound.
The code is very simple and should be easy to understand!

#include <reg52.h>

sbit beep=P2^3;
void main()
{
int a;
while(1)
{
a=66666;
beep=0;
while(a--);
a=66666;
beep=1;
while(a--);
}
}

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