#define BLYNK_PRINT Serial

// Akses Masuk ke masing-masing Blynk
#define BLYNK_TEMPLATE_ID "TMPL6lNuUPtHx"
#define BLYNK_TEMPLATE_NAME "Pemberi Pakan Ikan"
#define BLYNK_AUTH_TOKEN "tmYm0vm_k9yUDutB7mT56FB6UxxanYh"

#define ECHO_PIN 15
#define TRIG_PIN 4
#define vibrator 5
#define buzzer 18
int a = 0;
int indikator = 27;
#include <ESP32Servo.h>

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

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

Servo myservo; 
BlynkTimer timer;

// Bagian Pengaturan Operasi Pin, Blynk
// Sensor Ultrasonic dan Motor Servo
void setup() {
  pinMode(LED_BUILTIN, OUTPUT);
  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);
  pinMode(vibrator, OUTPUT);  
  pinMode(indikator, OUTPUT);  
  Blynk.begin(auth, ssid, pass);
  timer.setInterval(1000L, sendSensor);
  myservo.attach(2); 
  myservo.write(0);

  // Bagian Mengirim data awal ke Blynk
  Blynk.virtualWrite(V2, 0);
  Blynk.virtualWrite(V5, "Tertutup");
  Blynk.virtualWrite(V4, "Vibrator OFF");
  Blynk.virtualWrite(V0, "Buzzer OFF");
  Blynk.virtualWrite(V3, 0);
}

void loop() {  
  Blynk.run(); // Mengaktifkan Blynk
  timer.run(); // Mengaktifkan Timer
}

// Membaca Data dari Blynk, dari bagian Virtual Pin 2 
// untuk pengaturan kerja Motor Servo
BLYNK_WRITE(V2){
  myservo.write(param.asInt());
  int pinValue = param.asInt();
  if (pinValue > 5) {
    digitalWrite(vibrator, HIGH);
    Blynk.virtualWrite(V5, "Terbuka "+String(pinValue)+" Derajat");
    Blynk.virtualWrite(V4, "Vibrator ON");
  }else{
    digitalWrite(vibrator, LOW);
    Blynk.virtualWrite(V4, "Vibrator OFF");
    Blynk.virtualWrite(V5, "Terutup "+String(pinValue)+" Derajat");
  } 
  if (a == 1){
  Blynk.virtualWrite(V2, 0);
}
}

// Membaca Data dari Blynk, dari bagian Virtual Pin 3 
// untuk bagian Tombol Reset
BLYNK_WRITE(V3){
  int reset = (param.asInt());
  if (reset == 1){
    digitalWrite(vibrator, LOW);
    myservo.write(0);              
    delay(15);
    Blynk.virtualWrite(V2, 0);
    a = 1;
  }  else {
    a = 0;
  }
}

// Bagian untuk mengaktifkan dan membaca data sensor Ultrasonic
void sendSensor()
{
  digitalWrite (indikator, HIGH);
  digitalWrite(TRIG_PIN, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIG_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_PIN, LOW);

  // Bagian untuk mengkonversi data sensor ke Jarak
  int duration = pulseIn(ECHO_PIN, HIGH);
  int distance = duration * 0.034 / 2;
    
  // Kondisi Pakan Penuh
  if (a == 0){
  if (distance >= 20 && distance <= 100){
    Blynk.virtualWrite(V1, "Pakan Masih Ada, Ketinggian "+String(distance)+" Cm");
    //Blynk.virtualWrite(V4, "Vibrator ON");
    Blynk.virtualWrite(V0, "Buzzer OFF");
  }
  if (distance > 100 && distance <= 130){
    Blynk.virtualWrite(V1, "Pakan Mau Habis, Ketinggian "+String(distance)+" Cm");
    //Blynk.virtualWrite(V4, "Vibrator ON");
    Blynk.virtualWrite(V0, "Buzzer OFF");
  }
  if (distance >130){
    Blynk.virtualWrite(V1, "Pakan Habis, Ketinggian "+String(distance)+" Cm");
    Blynk.virtualWrite(V4, "Vibrator OFF");
    Blynk.virtualWrite(V0, "Buzzer Aktif");
    Blynk.virtualWrite(V5, "Katub Tertutup");
    Blynk.virtualWrite(V2, 0);
    digitalWrite(vibrator, LOW);
    myservo.write(0);              
    delay(15);
    tone (buzzer, 120);
    delay(500);
    noTone(buzzer);
  }  
  delay(100);  
  }

if (a == 1){
  Blynk.virtualWrite(V1, "Segera Isi Pakan");  
  noTone(buzzer);  
  Blynk.virtualWrite(V0, "Buzzer Tidak Aktif");
}
}