#include <LiquidCrystal_I2C.h> // Library for LCD

int incomingByte = 0; // for incoming serial data
LiquidCrystal_I2C lcd(0x27, 16, 2); // I2C address 0x27, 16 column and 2 rows

void setup() {
  Serial.begin(115200);
    
  lcd.init(); //initialize the lcd
  lcd.backlight(); //open the backlight 
  lcd.setCursor(0, 0);
  lcd.print("Hello World!");

}

void loop() {
   if (Serial.available() > 0) {
    // read the incoming byte:
    incomingByte = Serial.read();

    // say what you got:
    Serial.print("I received: ");
    Serial.println(incomingByte, DEC);
  }
  lcd.print(incomingByte);

}