#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

#include <NewPing.h>

#define TRIGGER_PIN  6  
#define ECHO_PIN     7 
#define MAX_DISTANCE 300

NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE);

void setup() {
   lcd.begin(16, 2);
lcd.print("Welcome To");
lcd.setCursor(0, 1);
lcd.print("    9~3~7   ");
delay(5000);
lcd.clear();
}

void loop() {
  delay(50);
  unsigned int uS = sonar.ping();
  lcd.print("Approximate");
  lcd.setCursor(0, 1);
  lcd.print("Distance = ");
  lcd.print(uS / US_ROUNDTRIP_CM); 
  lcd.print("cm");
  delay(500);
  lcd.clear();
}