#include <LCD_I2C.h>

LCD_I2C lcd(0x27, 16, 2); // Default address of most PCF8574 modules, change according

String str;
void setup()
{
    lcd.begin(); // If you are using more I2C devices using the Wire library use lcd.begin(false)
                 // this stop the library(LCD_I2C) from calling Wire.begin()
    lcd.backlight();
}

void loop()
{
  
  if(Serial.available()>0){

            str = Serial.read();

            lcd.setCursor(2,0);

            lcd.print(str);  

      }

      delay(100);
}