#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);

int trig_pin=7;
int echo_pin=6;
long echotime;
float Jarak;

void setup()
{
  lcd.init();
  lcd.backlight();
  pinMode (trig_pin, OUTPUT);
pinMode(echo_pin, INPUT);
}

void loop()
{
  digitalWrite(trig_pin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trig_pin, LOW);
  echotime=pulseIn(echo_pin,LOW);
  Jarak=0.0001*((float)echotime*340.0)/2.0;

 
 lcd.clear();
 lcd.setCursor(0,0);
 lcd.print("Jarak: ");
 lcd.print(Jarak);
 lcd.print(" cm");
 delay(1000);
}