#define Led1 4
#define Led2 5
#define Led3 6
#define Led4 7
#define Led5 8
#define Led6 9
#define Led7 10

void setup() 
{
  Serial.begin(9600);
  pinMode(Led1, OUTPUT);
  pinMode(Led2, OUTPUT);
  pinMode(Led3, OUTPUT); 
  pinMode(Led4, OUTPUT); 
  pinMode(Led5, OUTPUT); 
  pinMode(Led6, OUTPUT); 
  pinMode(Led7, OUTPUT); 

}

void loop() 
{
  
  Serial.println("1");

  digitalWrite(Led1, HIGH);
  delay(1000);
  digitalWrite(Led1, LOW);
  delay(1000);


  Serial.println("2");

  digitalWrite(Led2, HIGH);
  delay(1000);
  digitalWrite(Led2, LOW);
  delay(1000);


  Serial.println("3");
  digitalWrite(Led3, HIGH);
  delay(1000);
  digitalWrite(Led3, LOW);
  delay(1000);


  Serial.println("4");
  digitalWrite(Led4, HIGH);
  delay(1000);
  digitalWrite(Led4, LOW);
  delay(1000);


  Serial.println("5");
  digitalWrite(Led5, HIGH);
  delay(1000);
  digitalWrite(Led5, LOW);
  delay(1000);


  Serial.println("6");
  digitalWrite(Led6, HIGH);
  delay(1000);
  digitalWrite(Led6, LOW);
  delay(1000);


  Serial.println("7");
  digitalWrite(Led7, HIGH);
  delay(1000);
  digitalWrite(Led7 , LOW);
  delay(1000);
}