long duration;
int distance;
#include <LiquidCrystal.h>
LiquidCrystal lcd(22,23,5,18,19,21);
void setup(){
  pinMode(12, OUTPUT);
  pinMode(14, INPUT);
  lcd.begin(16,2);
  lcd.clear();
  lcd.print("Ultrasonic");
  lcd.setCursor(0,1);
  lcd.print("sensor");
  delay(1000);

}
void loop(){
  digitalWrite(12,LOW);
  delayMicroseconds(2);
  digitalWrite(12, HIGH);
  delayMicroseconds(10);
  digitalWrite(12,LOW);
  duration = pulseIn(14, HIGH);
  distance = duration*(0.034/2);

  delay((500));
  lcd.clear();
  lcd.print("Dist : ");
  lcd.setCursor(8,0);
  lcd.print(distance);
}