#include <LiquidCrystal_I2C.h>
#include <Wire.h>
LiquidCrystal_I2C lcd(0x27,16,2);
int trigPin=2;
int echoPin=3;
int jarak;

void setup() {
  pinMode (trigPin,OUTPUT);
  pinMode (echoPin,INPUT);
  Serial.begin(9600);
  lcd.begin(16,2);
  lcd.init();
  lcd.backlight();
  lcd.setCursor(1,1);
  lcd.print("Sensor Ultrasonic");
  delay (2000);
  lcd.clear();
  // put your setup code here, to run once:

}

void loop() {
  digitalWrite (trigPin,LOW);
  delayMicroseconds(2);
  digitalWrite (trigPin,HIGH);
  delayMicroseconds(10);
  digitalWrite (trigPin,LOW);
  int durasi=pulseIn(echoPin,HIGH);
  int jarak = durasi *0.034/2;
  lcd.setCursor (1,0);
  lcd.print(jarak);
  lcd.print("cm");
  



  // put your main code here, to run repeatedly:

}