// interrupt
int tipka = 3;
int ledPin = 8;
int timePassed;
int timeDelay = 500;
int stevec;
volatile bool m;


volatile byte stanje = LOW; // volatilnost omogoča

void setup() {
  pinMode(tipka, INPUT_PULLUP);
  pinMode(ledPin, OUTPUT);
  attachInterrupt(digitalPinToInterrupt(tipka), ISR_button, CHANGE);
  Serial.begin(115200);
}

void loop() {
  if (m == HIGH && ((millis()- timePassed) >timeDelay)){
    m = LOW;
    stevec++;
    timePassed = millis();
    Serial.println(stevec);
  }
}


void ISR_button(){
  m = HIGH;
}