#include <LiquidCrystal.h>

int rs = 12;
int en = 11;
int d4 = 5;
int d5 = 4;
int d6 = 3;
int d7 = 2;

LiquidCrystal lcd( rs, en, d4, d5, d6, d7);

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  lcd.begin(16, 2);
  lcd.print("Hello World !");
}

void loop() {
  herhaalLetterOpLcd("X");
}

void herhaalLetterOpLcd(String letter) {
  // put your main code here, to run repeat
  for (int i = 0; i < 16; i++ ) {
    delay(50);
    lcd.setCursor(i, 1);
    lcd.print(letter);
  }

}