/*
 for loop demo
 
*/

// the setup routine runs once when you press reset:
void setup() {
  
  for(int i=5; i<8; i++)
  pinMode(i, OUTPUT); 
}

// the loop routine runs over and over again forever:
void loop() {
 for(int i=5; i<8; i++)
   digitalWrite(i,LOW);

    delay(600);
   
 
for(int i=5; i<8; i++){
   digitalWrite(i, HIGH);
   delay(1000);
 }

}