unsigned long changeTime;
int casDelay = 500;

unsigned long cas;

bool m = HIGH;

int lucka = 0;
int zakasnitev = 500;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  changeTime = millis();

  pinMode(lucka, OUTPUT);
  pinMode(7, INPUT_PULLUP);
}

// če imaš samo eno dejanje v if-u ne rabiš dat zavitih oklepajev {}
// Serial.begin(115200)  uporabljaš, ko hočeš uporabiti  PRINT

void loop() {
  // put your main code here, to run repeatedly:
  /* naloga 1
  Serial.println("alarm");
  delay(500);*/

  /*  //1. naloga z millis()
  if ((millis()-changeTime) > casDelay){
    changeTime = millis();
    m = !m;
    if (m == LOW) Serial.println("vklop");
      else if (m == HIGH) Serial.println("izklop");
  }
  digitalWrite(lucka, LOW);
  delay(500);
  digitalWrite(lucka, HIGH);*/

  /*  2. naloga
  digitalWrite(lucka, HIGH);
  delay(500);
  digitalWrite(lucka, LOW);
  delay(500);   */

  /*  3. naloga
  if ((millis() - cas) > zakasnitev) {
    cas = millis();
    m = !m;
    digitalWrite(lucka, m);
  }   */

  Serial.println(digitalRead(7));

 /* DDRD = 0b11111110;
  delay(500);
  DDRD = 0b11111111;*/
}