Different LED Pattern Effect using 8051 Micro-controller

LED Pattern Effect using 8051

Here are the 8 different types of codes made on LED controlled by 8-bit micro-controller. It is posted to enhance your programming skills on 8051 as basic skills are developed on LED interfacing with 8051 only.

Try to make your own programs and different method to develop new ways to solve the problems which will enhance your skills more.

Parts Used :

8051  Microcontroller,

LED Bar Graph

Software Used: 

Proteus ISI

Keil

1. Blink LED

#include <reg51.h>

void delay()
{
unsigned int i;
for(i=0;i<1000;i++)
{
}
}

void main()
{
while(1)
{
P1=0xff;
delay();
P1=0x00;
delay();
}
}

2. Alternative/ Dancing pattern:

#include <reg51.h>

void delay()
{
unsigned int i;
for(i=0;i<1000;i++)
{
}
}

void main()
{
while(1)
{
P1=0xAA;
delay();
P1=0x55;
delay();
}
}

3.Curtain effect:

#include <reg51.h>
void delay()
{
unsigned int i,j;
for(i=0;i<1000;i++)
{
for(j=0;j<20;j++)
{

}

}
}

void main()
{
while(1)
{
P1=0x81;
delay();
P1=0xC3;
delay();
P1=0xE7;
delay();
P1=0xFF;
delay();
P1=0xE7;
delay();
P1=0xC3;
delay();
P1=0x81;
delay();
P1=0x00;
delay();

}
}