#include "Ultrasonic.h"

#define Trigger_pin 9
#define echo_pin 10

Ultrasonic SensorJarak(Trigger_pin, echo_pin);

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  
}

void loop() {
  // put your main code here, to run repeatedly:
  /*digitalWrite(Trigger_pin, LOW);
  delayMicroseconds(2);
  digitalWrite(Trigger_pin, HIGH);
  delayMicroseconds(10);
  digitalWrite(Trigger_pin, LOW);
  
  int duration = pulseIn(echo_pin, HIGH);
  // duration untuk menghitung waktu tempuh gelombang
  // pulseIn fungsi untuk membaca pulsa HIGH atau LOW
  float distanceinCm = duration * 0.0343 / 2; 
  // kecepatan suara 343 M / s = 0.0343 cm / microsecond
  /* Dibagi 2 dikarenakan ada 2 jarak yaitu ketika jarak gelombang sensor menembak ke objek 
       dan jarak pantulan gelombang daru objek ke sensor*/

  float distanceinCm = SensorJarak.read(CM);

  Serial.print("Jarak yg diukur: ");
  Serial.println(distanceinCm);

  delay(100);
}