#include <Wire.h>
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C Icd(0x27, 16, 2);

const int TRIG_PIN = 7; // Pin TRIG pada Arduino 
const int ECHO_PIN = 6; // Pin ECHO pada Arduino 
float duration_us, distance_cm; 
void setup() { 
 Serial.begin(9600);

 pinMode(TRIG_PIN, OUTPUT); 
 pinMode(ECHO_PIN, INPUT);

 Icd.begin(16, 2);
 Icd.init(); 
 Icd.backlight(); 
}

void loop() {
 digitalWrite(TRIG_PIN, LOW); 
 delayMicroseconds(2); 
 digitalWrite(TRIG_PIN, HIGH); 
 delayMicroseconds(10); 
 digitalWrite(TRIG_PIN, LOW);

 duration_us = pulseIn (ECHO_PIN, HIGH); 
 distance_cm = duration_us * 0.034/2;

 Serial.print("Jarak: "); 
 Serial.print(distance_cm); 
 Serial.println("cm");

 Icd.clear();
 Icd.setCursor(0, 0); 
 Icd.print("Distance: "); 
 Icd.print(distance_cm); 
 Icd.print("cm");

  delay(500);
}