int E=2; int D=3; int C=4; int P=5;
int B=6; int A=7; int F=8; int G=9;
 
void setup() {
pinMode(E, OUTPUT); pinMode(D, OUTPUT); pinMode(C, OUTPUT);
pinMode(A, OUTPUT); pinMode(B, OUTPUT); pinMode(F, OUTPUT); 
pinMode(G, OUTPUT); pinMode(P, OUTPUT); 
}
void loop() {
for(int i=0; i<=9;i++){
SayiYaz(i);
delay(1000);
}
}
void SayiYaz(int sayi){
switch(sayi)
{
case 0 :
digitalWrite(E,LOW);
digitalWrite(D,LOW); 
digitalWrite(C,LOW); 
digitalWrite(B,LOW); 
digitalWrite(A,LOW); 
digitalWrite(F,LOW); 
digitalWrite(G,HIGH); 
break;
case 1:
digitalWrite(E,HIGH);
digitalWrite(D,HIGH); 
digitalWrite(C,LOW); 
digitalWrite(B,LOW); 
digitalWrite(A,HIGH); 
digitalWrite(F,HIGH); 
digitalWrite(G,HIGH); 
break;
case 2:
digitalWrite(E,LOW);
digitalWrite(D,LOW); 
digitalWrite(C,HIGH); 
digitalWrite(B,LOW); 
digitalWrite(A,LOW); 
digitalWrite(F,HIGH); 
digitalWrite(G,LOW); 
break;
case 3:
digitalWrite(E,HIGH);
digitalWrite(D,LOW); 
digitalWrite(C,LOW); 
digitalWrite(B,LOW); 
digitalWrite(A,LOW); 
digitalWrite(F,HIGH); 
digitalWrite(G,LOW); 
break;
case 4:
digitalWrite(E,HIGH);
digitalWrite(D,HIGH); 
digitalWrite(C,LOW); 
digitalWrite(B,LOW); 
digitalWrite(A,HIGH); 
digitalWrite(F,LOW); 
digitalWrite(G,LOW); 
break;
case 5:
digitalWrite(E,HIGH);
digitalWrite(D,LOW); 
digitalWrite(C,LOW); 
digitalWrite(B,HIGH); 
digitalWrite(A,LOW); 
digitalWrite(F,LOW); 
digitalWrite(G,LOW); 
break;
case 6:
digitalWrite(E,LOW);
digitalWrite(D,LOW); 
digitalWrite(C,LOW); 
digitalWrite(B,HIGH); 
digitalWrite(A,LOW); 
digitalWrite(F,LOW); 
digitalWrite(G,LOW); 
break;
case 7:
digitalWrite(E,HIGH);
digitalWrite(D,HIGH); 
digitalWrite(C,LOW); 
digitalWrite(B,LOW); 
digitalWrite(A,LOW); 
digitalWrite(F,HIGH); 
digitalWrite(G,HIGH); 
break;
case 8:
digitalWrite(E,LOW);
digitalWrite(D,LOW); 
digitalWrite(C,LOW); 
digitalWrite(B,LOW); 
digitalWrite(A,LOW); 
digitalWrite(F,LOW); 
digitalWrite(G,LOW); 
break;
case 9:
digitalWrite(E,HIGH);
digitalWrite(D,LOW); 
digitalWrite(C,LOW); 
digitalWrite(B,LOW); 
digitalWrite(A,LOW); 
digitalWrite(F,LOW); 
digitalWrite(G,LOW); 
break;
}
}