#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd (0x27,16,2);

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  Serial.println(".");
  lcd.init();
  lcd.backlight();
  lcd.print("ahoj");
  //lcd.setCursor(0,1);
  //lcd.print("III.BI");

  }

void loop() {
  // put your main code here, to run repeatedly:
  String c = Serial.readStringUntil('\n');
  lcd.setCursor(0,1);
  lcd.print(c);
}