LED show

LEDs.ino

int leds[] = {};
int globalDelay = 100;

void setup(){
  // Initialize Pins
  for(int i = 0; i < sizeof(leds); i++){
    pinMode(leds[i], OUTPUT);
  }
  // Initialize Serial
  Serial.begin(9600);
}

void loop(){
  // Turn on the leds
  for(int i = 0; i < sizeof(leds); i++){
    digitalWrite(leds[i], HIGH);
    delay(globalDelay);
  }
  // Turn off the leds
  for(int i = 0; i < sizeof(leds); i++){
    digitalWrite(leds[i], LOW);
    delay(globalDelay);
  }
  // Shorten delay
  if(globalDelay > 25){
    globalDelay -= 25;
  }
}