#define LED1 4
#define LED2 5
#define LED3 6
#define LED4 7 
#define LED5 8 

#define PAUSE 5000

void setup() {
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
  pinMode(LED3, OUTPUT);
  pinMode(LED4, OUTPUT);
  pinMode(LED5, OUTPUT);
  
}

void loop() {
  digitalWrite(LED1,HIGH);
  delay(PAUSE);
  digitalWrite(LED1,LOW); 

  digitalWrite(LED2,HIGH);
  delay(PAUSE);
  digitalWrite(LED2,LOW); 

  digitalWrite(LED3,HIGH);
  delay(PAUSE);
  digitalWrite(LED3,LOW); 

  digitalWrite(LED4,HIGH);
  delay(PAUSE);
  digitalWrite(LED4,LOW);

  digitalWrite(LED5,HIGH);
  delay(PAUSE);
  digitalWrite(LED5,LOW);

  
}