//Dianisa Tri Rahmani (06)
//2241170071
//3F-D4TE

#define TRIG 5
#define ECHO 18

void setup () {
  //serial port begin
  Serial.begin(9600); 
  //mendefinisikan input dan output
  pinMode(TRIG,OUTPUT);
  pinMode(ECHO, INPUT);
}

void loop (){
  //menghasilkan sinyal trigger
  digitalWrite(TRIG, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIG, HIGH);
  delayMicroseconds(5);


  //menghitung durasi sinyal
  int durasi = pulseIn(ECHO,HIGH);
  //menghitung jarak
  float jarak = durasi * 0.034 /2;

  //menampilkan ke serial monitor
  Serial.print("Jarak :"); 
  Serial.print(jarak);
  Serial.print("cm");
  Serial.println();

  delay(100);
}