Sketch.ino

#include <LiquidCrystal.h>

// select the pins used on the LCD panel
LiquidCrystal lcd(8, 9, 4, 5, 6, 7);

int val = 0; 

void setup() {
  // put your setup code here, to run once:
  lcd.begin(16, 2);              // start the library
  lcd.setCursor(0,0);
  Serial.begin(9600);
  
}

void loop() {
  // put your main code here, to run repeatedly:
  val = analogRead(4);    // read the input pin
  lcd.setCursor(0,1);
  lcd.print(val);
  Serial.println(val);             // debug value
}