#include <LiquidCrystal_I2C.h>
#define address 0x27
#define col 20
#define row 4

LiquidCrystal_I2C lcd(address, col, row);

int potpin = A0;
int pot;

void setup() {
  Serial.begin(9600);
  lcd.init();
  lcd.backlight();
}

void loop() {
  pot = analogRead(potpin);
  Serial.println(pot);
  lcd.setCursor(3,1);
  lcd.print(pot);
}