LED ON/OFF Using Switch

 In this tutorial we On and Off LED using Switch button in 8051.

Connections:

Program:

#include <reg51.h>

sbit LED = P1^1;

sbit sw = P1^2;

void delay(int t)

{

int i = 0;

for(i=0;i<12750*t;i++)

{

}

}

void main()

{

if (sw == 0)

{

LED = 0;

delay(2);

  }

else

{

LED = 1;

delay(2);

}

}