// ---------------------------------------------------------
// I2C - LCD Anzeige
// Pinning: ESP32 D22 <=> SCL I2C_LCD
//                D21 <=> SDA
//                3V3 <=> Vcc
//                GND <=> GND
// Befehle:
// oLCD.init ()
// oLCD.backlight ();
// oLCD.clear ();
// oLCD.setCursor (iSpalte,iZeile);
// oLCD.printf ("Hallo");
#include <LiquidCrystal_I2C.h>

#define I2C_ADDR    0x27
#define LCD_COLUMNS 16
#define LCD_LINES   2

#define Rauf 13
#define Runter 14
#define Links 12
#define Rechts 27

LiquidCrystal_I2C oLCD (I2C_ADDR, LCD_COLUMNS, LCD_LINES);
// ---------------------------------------------------------

void setup()
{
  oLCD.init();
  oLCD.backlight();  
  oLCD.printf ("Test");
  
  pinMode(Rauf, INPUT_PULLUP);
  pinMode(Runter, INPUT_PULLUP);
  pinMode(Links, INPUT_PULLUP);
  pinMode(Rechts, INPUT_PULLUP);

void loop()
{
  int Wagrecht = 0;
  int Senkrecht = 0;

  if(digitalRead(Rauf) == 1)
}