#include <LiquidCrystal.h>


//           (rs, enable, d4,d5,d6,d7)
LiquidCrystal lcd(7,6,5,4,3,2);

int8_t seconds = 0;
int8_t minutes = 0;
int8_t hours = 0;

void setup() {
  // put your setup code here, to run once:
  lcd.print("Hallo");
  pinMode(8, INPUT_PULLUP);
  
}

void loop() {

  if (digitalRead(8)==0){ 
    while (true){
      lcd.clear();
      lcd.setCursor(5,0);
      lcd.print(hours);
      lcd.print(":");
      lcd.print(minutes);
      lcd.print(":");
      lcd.print(seconds);
      seconds++;
      delay(1000);
      if (seconds==60){
        seconds = 0;
        minutes++;
      }
    }
  }
}