int LED = 9;  //LED pin
int bs1 = 1;  //spremenljivka za stetje
int bs05 = 1; //spremenljivka za stetje

void setup() {
  pinMode(LED, OUTPUT); //led pin output
}

void loop() {
  reset();  //izklopi vse
  blink_1s(3);  //3-krat ponovi blink(1 sekunda)
  blink_05s(3); //3-kart ponovi blink (0.5 sekunde)
  fade(5);  //3-krat ponovi fade
}

void reset() {
  digitalWrite(LED, 0); //izklopi led izhod
}

void blink_1s(int numA) { //iz oklepaja shrani v spremenljivko
  reset();
  for (bs1 = 1; bs1 < numA +1; bs1++) { //for loop
  digitalWrite(LED, 1);
  delay(1000);
  digitalWrite(LED, 0);
  delay(1000);
  }
}

void blink_05s(int numB) {
  reset();
  for (bs05 = 1; bs05 < numB +1; bs05++) {
  digitalWrite(LED, 1);
  delay(500);
  digitalWrite(LED, 0);
  delay(500);
  }
}

void fade(int numC) {
  reset();
  for (int fum = 1; fum < numC +1; fum++) {
    for (int i = 1; i < 256; i++) { //fade in for loop
      analogWrite(LED, i);
      delay(6);
    }
    for (int o = 255; o > 0; o--) { //fade out for loop
      analogWrite(LED, o);
      delay(6);
    }
  }
}