How to use digit 7-Segment LED Display with Arduino, project with code

The digit 7-Segment Display, is used to display numbers and letters, so that it can be used as a counter, clock, calculator, or panel to display different values such as temperature, speed, charge level, percentage, weight, and other projects that need to display numerical values, in this post we will learn: How to use digit 7 Segment led Display with Arduino.

Electronic components needed :

2 Resistance ( 220 Ohm )
7-Segment led Display
Electrical wires
Arduino UNO
Breadboard

Schema of the circuit :

Arduino programming code :

int A = 7;  
int B = 6;
int C = 4;  
int D = 3;
int E = 2;
int F = 8;
int G = 9;
 
byte num0 = 0x3F;  
byte num1 = 0x6;
byte num2 = 0x5B;
byte num3 = 0x4F;
byte num4 = 0x66;
byte num5 = 0x6D;
byte num6 = 0x7C;
byte num7 = 0x7;
byte num8 = 0x7F;
byte num9 = 0x6F;

// www.andprof.com
 
void on(byte num)
 {
  int result = bitRead(num, 0);

      if (result == 1)
 
    {digitalWrite(A, HIGH);}
    else
    {digitalWrite(A, LOW);}
 
      result = bitRead( num, 1);  
 
      if (result == 1)
 
    {digitalWrite(B, HIGH);}
    else
    {digitalWrite(B, LOW);}     
    result = bitRead( num, 2);
 
      if (result == 1)
 
    {digitalWrite(C, HIGH);}
    else
    {digitalWrite(C, LOW);}    
   result = bitRead( num, 3);
 
      if (result == 1)
 
    {digitalWrite(D, HIGH);}
    else
    {digitalWrite(D, LOW);}    
   result = bitRead( num, 4);
 
      if (result == 1)
    {digitalWrite(E, HIGH);}
    else
    {digitalWrite(E, LOW);}
    
   result = bitRead( num, 5);  
      if (result == 1)
    {digitalWrite(F, HIGH);}
    else
    {digitalWrite(F, LOW);}    
    
   result = bitRead( num, 6);
      if (result == 1)
    {digitalWrite(G, HIGH);}
    else
    {digitalWrite(G, LOW);}
  }
void setup() {    
// put your setup code here, to run once:
  pinMode(A, OUTPUT); 
  pinMode(B, OUTPUT);
  pinMode(C, OUTPUT);
  pinMode(D, OUTPUT);
  pinMode(E, OUTPUT);
  pinMode(F, OUTPUT);
  pinMode(G, OUTPUT);
  pinMode(10,OUTPUT);
}
void loop() {   
// put your main code here, to run repeatedly:
  on(num0);   
 delay(1000);   
  on(num1);  
  delay(1000); 
  on(num2);  
  delay(1000);
  on(num3);  
  delay(1000);
  on(num4);  
  delay(1000);
  on(num5);  
  delay(1000);
  on(num6);  
  delay(1000);
  on(num7);
  delay(1000);
  on(num8);  
  delay(1000);  
  on(num9);  
  delay(1000);
}