#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0X27,16,2);

void setup() {
  // put your setup code here, to run once:
lcd.init();
lcd.backlight();
Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  if(Serial.available())
  {
    String s=Serial.readString();
    lcd.println(s);
    lcd.setCursor(0,0);
  }

}

/*

#include <Wire.h>
void setup() {
 // Initialize I2C communication
 Wire.begin();
 // Initialize Serial communication
 Serial.begin(9600);
 Serial.println("\nI2C Scanner");
}
void loop() {
 // Main code to run repeatedly
 byte errorCode;
 int deviceCount = 0;
 Serial.println("Scanning...");
 for (int address = 1; address < 123; address++) {
 Wire.beginTransmission(address);
 errorCode = Wire.endTransmission();
 if (errorCode == 0) {
 Serial.print("I2C device found at address 0x");
 
 if (address < 16)
 Serial.print("0");
 Serial.print(address, HEX);
 Serial.println(" !");
 deviceCount++;
 }
 else if (errorCode == 4) {
 Serial.print("Unknown error at address 0x");
 if (address < 16)
 Serial.print("0");
 Serial.print(address, HEX);
 }
 }
 if (deviceCount == 0) {
 Serial.println("No I2C device found\n");
 }
 else {
 Serial.println("Done\n");
 }
 delay(5000);
}
*/