#include <Wire.h>                   // Wire Bibliothek einbinden
#include <LiquidCrystal_I2C.h>      // LiquidCrystal_I2C Bibliothek

#define BTN_RED   2
#define BTN_GREEN 3

LiquidCrystal_I2C lcd(0x27, 16, 2); // LiquidCrystal_I2C Objekt

int  counter= 7;
byte input  = 0;
String sInput = "";