#define BLYNK_PRINT Serial

#define BLYNK_TEMPLATE_ID "TMPL6oj374o8C"
#define BLYNK_TEMPLATE_NAME "Pintu Otomatis"
#define BLYNK_AUTH_TOKEN "Q5SpWWaOwFWdfiXXJ1B1o9oPzFYjniJS"

#include <ESP32Servo.h>
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>

char auth[] = BLYNK_AUTH_TOKEN;
char username[] = "Wokwi-GUEST";
char password [] = "";

const int trigPin = 12;  // Pin Trigger HC-SR04
const int echoPin = 14;  // Pin Echo HC-SR04
const int ledPin = 13;   // Pin LED
Servo gateServo;         // Objek Servo

void setup() {
  Serial.begin(115200);
  Blynk.begin(auth, username, password);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  pinMode(ledPin, OUTPUT);
  gateServo.attach(4);   // Hubungkan motor servo ke pin 4
}

void loop() {
  Blynk.run();
  
  long duration, distance;
  // ... (bagian pengukuran jarak)

  // Kontrol pintu gerbang berdasarkan jarak
  if (distance < 10) {
    openGate();
    digitalWrite(ledPin, HIGH);  // Nyalakan LED
  } else {
    closeGate();
    digitalWrite(ledPin, LOW);  // Matikan LED
  }

  delay(1000);  // Interval pembacaan sensor
}

void openGate() {
  gateServo.write(90);  // Posisi buka pintu
  delay(1000);          // Delay agar motor servo stabil
}

void closeGate() {
  gateServo.write(0);   // Posisi tutup pintu
  delay(1000);          // Delay agar motor servo stabil
}

BLYNK_WRITE(V0) {
  // Fungsi ini akan dipanggil saat tombol di pin virtual V0 di Blynk ditekan
  int btnState = param.asInt();

  if (btnState == 1) {
    openGate();
    digitalWrite(ledPin, HIGH);  // Nyalakan LED
  } else {
    closeGate();
    digitalWrite(ledPin, LOW);  // Matikan LED
  }
}