include <Wire.h>

#include <LiquidCrystal.h>

LiquidCrystal lcd(8, 9, 4, 5, 6, 7);

const int a0 = a0;

int val = 0;

void setup() {

lcd.begin(16, 2);

}

void loop() {

delay(100);

val = analogRead(a0);

lcd.print("Output: ");

lcd.print(val);

lcd.setCursor(0, 1);

lcd.print("refresh: 1 sec");

delay(1000);

lcd.clear();

}