#include<LiquidCrystal.h>
int rs=7,en=6,d4=11,d5=10,d6=9,d7=8;
LiquidCrystal lcd(rs,en,d4,d5,d6,d7);
const int trigPin = 13;
const int echoPin = 12;

long duration;
int distance;
void setup() {
  lcd.begin(16,2);
pinMode(trigPin, OUTPUT); 
pinMode(echoPin, INPUT); 
}

void loop() {

digitalWrite(trigPin, LOW);
delayMicroseconds(2);

digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);

duration = pulseIn(echoPin, HIGH);

distance= duration*0.034/2;
lcd.setCursor(1,0);
lcd.print("Distance: ");
lcd.println(distance);
delay(1500);
}