Embedded System 7 Segment

by Online Tutorials Library July 14, 2022

Displaying Number on 7-Segment Display using 8051 Microcontroller

Electronic display used for displaying alphanumeric character is known as 7-Segment display it is used in many systems for displaying the information.

It is constructed using eight LEDs which are connected in sequential way so as to display digits from 0 to 9, when certain combinations of LEDs are switched on. It displays only one digit at a time.

Consider the Proteus software based simulation of displaying number on 7-segment display using 8051 microcontroller is:-

Displaying Number on 7-Segment1

Consider the program for displaying the number from ‘0 to F’ on 7-segment display is:-

  #include  sbit a= P3^0;  sbit x= P3^1;  sbit y= P3^2;  sbit z= P3^3;  void main()  {  unsigned char m[10]={0?40,0xF9,0?24,0?30,0?19,0?12,0?02,0xF8,0xE00,0?10};  unsigned int i,j;  a=x=y=z=1;  while(1)  {  for(i=0;i<10;i++)  {  P2=m[i];  for(j=0;j<60000;j++);  }  }  }  

Consider the program for displaying numbers from ’00 to 10′ on a 7segment display is:-

  #include  sbit x= P3^0;  sbit y= P3^1;  void display1();  void display2();  void delay();  void main()  {  unsigned char m[10]={0?40,0xF9,0?24,0?30,0?19,0?12,0?02,0xF8,0xE00,0?10};  unsigned int i,j;  ds1=ds2=0;  while(1)  {  for(i=0,i<20;i++)  display1();  display2();  }  }  void display1()  {  x=1;  y=0;  P2=m[ds1];  delay();  x=1;  y=0;  P2=m[ds1];  delay();  }  void display2()  {  ds1++;  if(ds1>=10)  {  ds1=0;  ds2++;  if(ds2>=10)  {  ds1=ds2=0;  }  }  }  void delay()  {  unsigned int k;  for(k=0;k<30000;k++);  }  

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