String den = "";
bool piatok = false;

void setup() {
  // put your setup code here, to run once:
  pinMode(LED_BUILTIN, OUTPUT);

  Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
/*
  if(Serial.available() > 0){
    den = Serial.readStringUntil('\n');
    if(den == "Konečne piatoček!"){
      piatok = true;
    }else{
      piatok = false;
      Serial.println("huuuh zas do školy!");
    }
  }
  
  if(piatok){
    digitalWrite(LED_BUILTIN, HIGH);
    delay(500);
    digitalWrite(LED_BUILTIN, LOW);
    delay(500);
  }
  */

  for(int i = 1; i<=7; i++){
    if(i == 5){
      Serial.println(i);
      digitalWrite(LED_BUILTIN, HIGH);
      delay(1000);
      digitalWrite(LED_BUILTIN, LOW);
    }else{
      Serial.println(i);
    }
    delay(500);
  }

  // 1, 2, 3, 4, 5, 6, 7

  // ak 5, tak dioda zasvieti na sekundu, 
  // inak dioda nebude svietit
  // medzi dňami je pol sekundový rozdiel


}