/*
  Blinking LEDs - test program to run 3 LEDs in a pattern of blinks
*/

int led1 = 0;
int led2 = 1;
int led3 = 2;
int led4 = 3;
int led5 = 4;
int led6 = 5;
int led7 = 6;
int led8 = 7;
int led9 = 8;

// the setup routine runs once when you press reset:
void setup() {                
  // initialize the digital pin as an output.
  pinMode(led1, OUTPUT);   
  pinMode(led2, OUTPUT);  
  pinMode(led3, OUTPUT);    
  pinMode(led4, OUTPUT);
  pinMode(led5, OUTPUT);
  pinMode(led6, OUTPUT);
  pinMode(led7, OUTPUT);
  pinMode(led8, OUTPUT);
  pinMode(led9, OUTPUT);
  }

// the loop routine runs over and over again forever:
void loop() {
  digitalWrite(led1, HIGH);   
  delay(500);                     
  digitalWrite(led1, LOW);    
  digitalWrite(led2, HIGH);    
  delay(500);                     
  digitalWrite(led2, LOW);     
  digitalWrite(led3, HIGH);     
  delay(500);                     
  digitalWrite(led3, LOW);     
  digitalWrite(led4, HIGH);    
  delay(500);                     
  digitalWrite(led4, LOW);      
  digitalWrite(led5, HIGH);    
  delay(500);                      
  digitalWrite(led5, LOW);
  digitalWrite(led6, HIGH);    
  delay(500); 
  digitalWrite(led6, LOW);
  digitalWrite(led7, HIGH);    
  delay(500); 
  digitalWrite(led7, LOW);
  digitalWrite(led8, HIGH);    
  delay(500); 
  digitalWrite(led8, LOW);
  digitalWrite(led9, HIGH);    
  delay(500); 
  delay(1000);                     
}