#define BLYNK_TEMPLATE_ID "TMPL6nBWrFLjk"
#define BLYNK_TEMPLATE_NAME "PraktekIOT"
#define BLYNK_AUTH_TOKEN "-SOwO-ZonCI63t0G5FWqenyUuVuWNGgH"
#include <ESP32Servo.h>
#include <WiFi.h>
#include <BlynkSimpleEsp32.h>

char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

const int trigPin = 12;
const int echoPin = 13;
const int ledPin = 5;
Servo myServo;

void setup() {
  Serial.begin(115200);

  Blynk.begin(auth, ssid, pass);

  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  pinMode(ledPin, OUTPUT);
  myServo.attach(14);
}

void loop() {
  Blynk.run();

  long duration, distance;

  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);

  duration = pulseIn(echoPin, HIGH);
  distance = (duration * 0.0343) / 10;

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

  // Mengirimkan nilai jarak ke widget Value Display di Blynk
  Blynk.virtualWrite(V0, distance);

  if (distance < 10) {
    myServo.write(0);
    digitalWrite(ledPin, HIGH);
  } else {
    myServo.write(90);
    digitalWrite(ledPin, LOW);
  }

  delay(500);
}