7 Segment LED Display:
Hardware connection:
 |
| 7seg LED display with 8051 |
Program:
1st method:
#include <reg52.h>
void Delay(unsigned int ms_Count)
{
unsigned int i,j;
for(i=0; i<ms_Count; i++)
{
for(j=0; j<100; j++);
}
}
int main()
{
P1 = 0x00;
while(1)
{
P1 = 0x06; //Display 1
Delay(1000);
P1= 0x5B; //Display 2
Delay(1000);
P1 = 0x4F; //Display 3
Delay(1000);
}
}
2nd Method:
#include <reg51.h>
void delay(unsigned int k)
{
unsigned int i,j;
for(i=0;i<k;i++)
{
for(j=0;j<100;j++);
}
}
int main() {
char seg_code[]={0x06,0x5b,0x4f};
int i;
while (1)
{
for (i = 0; i <= 2; i++) // loop to display 1-3
{
P1 = seg_code[i];
delay(1000);
}
}
}
If you have any doubts do comment, thank you.