#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#define potpin 4
LiquidCrystal_I2C lcd(0x27, 16, 2);
float pot; 

void setup() {
  lcd.init();
 Serial.begin(115200);
  pinMode(potpin, INPUT);
}

void loop() {
 pot = analogRead(potpin);
 lcd.setBacklight(1);
 Serial.println(pot);
 lcd.setCursor(4,0);
 lcd.println(pot);
 
 delay(100); 
}