#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);

int pot;

void setup(){
  lcd.init();
  lcd.backlight();  
  pinMode(25, INPUT);
}

void loop(){
  pot = analogRead(25);

  lcd.setCursor(0, 0);
  lcd.print("Port: ");
  lcd.print(pot);
  delay(100);
}