Arduino Oscilliscope

// Included Libraries
#include <LiquidCrystal.h>
// Pin Definitions
const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);

void setup() {
  // put your setup code here, to run once:
 Serial.begin(115200);     //Setup seriaal connection
  lcd.begin(16, 2);
  lcd.print("OSCILLISCOPE RSP");
}

void loop() {
  // put your main code here, to run repeatedly:
 lcd.setCursor(0, 1);
  lcd.print("RUNNING v1.");
 lcd.setCursor(11, 1);
  lcd.print(millis() / 1000);

   int val = analogRead(A0);
   Serial.println(val);
}