int k1 = 2;
int y1 = 3;
int k2 = 4;
int y2 = 5;
int k3 = 6;
int y3 = 7;
int k4 = 8;


void setup() {
// ledleri tanımlıyalım
  pinMode(k1, OUTPUT);
  pinMode(k2, OUTPUT);
  pinMode(k3, OUTPUT);
  pinMode(k4, OUTPUT);
  pinMode(y1, OUTPUT);
  pinMode(y2, OUTPUT);
  pinMode(y3, OUTPUT);
  

}

void loop() {
// 1. ledi yak ve diğerlerini kapat.
 digitalWrite(k1, HIGH);
 digitalWrite(y1, LOW); 
 digitalWrite(k2, LOW);
 digitalWrite(y2, LOW);
 digitalWrite(k3, LOW);
 digitalWrite(y3, LOW);
 digitalWrite(k4, LOW);

 
 delay(600);
//2. ledi yak diğerlerini kapat
  digitalWrite(k1, LOW);
 digitalWrite(y1, HIGH); 
 digitalWrite(k2, LOW);
 digitalWrite(y2, LOW);
 digitalWrite(k3, LOW);
 digitalWrite(y3, LOW);
 digitalWrite(k4, LOW);

 delay(600);
//3. ledi yak diğerlerini kapat
  digitalWrite(k1, LOW);
 digitalWrite(y1, LOW); 
 digitalWrite(k2, HIGH);
 digitalWrite(y2, LOW);
 digitalWrite(k3, LOW);
 digitalWrite(y3, LOW);
 digitalWrite(k4, LOW);

 delay(600);
//4. ledi yak diğerlerini kapat
  digitalWrite(k1, LOW);
 digitalWrite(y1, LOW); 
 digitalWrite(k2, LOW);
 digitalWrite(y2, HIGH);
 digitalWrite(k3, LOW);
 digitalWrite(y3, LOW);
 digitalWrite(k4, LOW);
  
 delay(600);
//5. ledi yak diğerlerini kapat  
digitalWrite(k1, LOW);
 digitalWrite(y1, LOW); 
 digitalWrite(k2, LOW);
 digitalWrite(y2, LOW);
 digitalWrite(k3, HIGH);
 digitalWrite(y3, LOW);
 digitalWrite(k4, LOW);
  
 delay(600);
//6. ledi yak diğerlerini kapat
  digitalWrite(k1, LOW);
 digitalWrite(y1, LOW); 
 digitalWrite(k2, LOW);
 digitalWrite(y2, LOW);
 digitalWrite(k3, LOW);
 digitalWrite(y3, HIGH);
 digitalWrite(k4, LOW);
 delay(600);
//7. ledi yak diğerlerini kapat
  digitalWrite(k1, LOW);
 digitalWrite(y1, LOW); 
 digitalWrite(k2, LOW);
 digitalWrite(y2, LOW);
 digitalWrite(k3, LOW);
 digitalWrite(y3, LOW);
 digitalWrite(k4, HIGH);

 delay(600);  
//7. ledi yak diğerlerini kapat
 digitalWrite(k1, LOW);
 digitalWrite(y1, LOW); 
 digitalWrite(k2, LOW);
 digitalWrite(y2, LOW);
 digitalWrite(k3, LOW);
 digitalWrite(y3, LOW);
 digitalWrite(k4, HIGH);

 delay(600);
//6. ledi yak diğerlerini kapat
 digitalWrite(k1, LOW);
 digitalWrite(y1, LOW); 
 digitalWrite(k2, LOW);
 digitalWrite(y2, LOW);
 digitalWrite(k3, LOW);
 digitalWrite(y3, HIGH);
 digitalWrite(k4, LOW);

 delay(600);
//5. ledi yak diğerlerini kapat
  digitalWrite(k1, LOW);
 digitalWrite(y1, LOW); 
 digitalWrite(k2, LOW);
 digitalWrite(y2, LOW);
 digitalWrite(k3, HIGH);
 digitalWrite(y3, LOW);
 digitalWrite(k4, LOW);

 delay(600);
//4. ledi yak diğerlerini kapat
  digitalWrite(k1, LOW);
 digitalWrite(y1, LOW); 
 digitalWrite(k2, LOW);
 digitalWrite(y2, HIGH);
 digitalWrite(k3, LOW);
 digitalWrite(y3, LOW);
 digitalWrite(k4, LOW);
  
 delay(600);
//3. ledi yak diğerlerini kapat
   digitalWrite(k1, LOW);
 digitalWrite(y1, LOW); 
 digitalWrite(k2, HIGH);
 digitalWrite(y2, LOW);
 digitalWrite(k3, LOW);
 digitalWrite(y3, LOW);
 digitalWrite(k4, LOW);

 delay(600)
//2. ledi yak diğerlerini kapat;
   digitalWrite(k1, LOW);
 digitalWrite(y1, HIGH); 
 digitalWrite(k2, LOW);
 digitalWrite(y2, LOW);
 digitalWrite(k3, LOW);
 digitalWrite(y3, LOW);
 digitalWrite(k4, LOW);

 delay(600);
//1. ledi yak diğerlerini kapat
   digitalWrite(k1, HIGH);
 digitalWrite(y1, LOW); 
 digitalWrite(k2, LOW);
 digitalWrite(y2, LOW);
 digitalWrite(k3, LOW);
 digitalWrite(y3, LOW);
 digitalWrite(k4, LOW);

 
 delay(600);
 
  


 

 

}