#include <LiquidCrystal.h>  // put your setup code here, to run once:
#define echoPin  7 //connect echo pin of ultrasonic sensor
#define trigPin 6 //connect trigger pin of ultrasonic sensor

long duration; //
int distance;

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


void setup() {
  lcd.begin(16,2);// put your setup code here, to run once:
Serial.begin(9600);
  pinMode(trigPin,OUTPUT);
  pinMode(echoPin,INPUT);

}

void loop() {
  // put your main code here, to run repeatedly:
 digitalWrite(trigPin,LOW);
    delayMicroseconds(2);
    digitalWrite(trigPin, HIGH);
    delayMicroseconds(10);
    digitalWrite(trigPin, LOW);

    duration=pulseIn(echoPin,HIGH);
    distance=(duration*0.034/2);
    lcd.print("Distance: ");
    lcd.print(distance);
    lcd.print(" cm ");
    delay(1000);
}