How to interface Buzzer with LPC2148

 

Program code

#include <LPC214x.h>

#include <stdio.h>

#define BUZZ 7

void Delay(void);

void Wait(void);

void Delay()

{

unsigned int i,j;

for(i=0;i<1000;i++)

for(j=0;j<700;j++);

}

void main()

{

PINSEL0 = 0x00; //Configure Port0.7 as GPIO

IODIR0 = 3 << BUZZ; //Configure Port0.7 as OutPut pin

while(1)

{

IOSET0 = 1 << BUZZ;

Delay();

IOCLR0 = 1 << BUZZ;

Delay();

}

}

Circuit Diagram