//Andri Nugroho_TIF221PC
#include <Servo.h>

const int trigPin = 9;
const int echoPin = 10;

const int servoPin = 6;

Servo myServo;

long duration;
int distance;

void setup() {
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  
  myServo.attach(servoPin);
  
  myServo.write(90);
  
  Serial.begin(9600);
}

void loop() {
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  
  duration = pulseIn(echoPin, HIGH);
  

  distance = duration * 0.034 / 2;
  
 
  Serial.print("Jarak: ");
  Serial.print(distance);
  Serial.println(" cm");
  
  // Jika jarak kurang dari 30 cm
  if(distance < 50){
    // Menggerakan motor servo ke posisi tertentu (misalnya 0 derajat)
    myServo.write(0);
    delay(1000); // Tunggu 1 detik
    
    // Kembali ke posisi awal (misalnya 90 derajat)
    myServo.write(90);
    delay(1000); // Tunggu 1 detik
  }
  
  delay(500);
}