#define BLYNK_TEMPLATE_ID "TMPL6yOdigGSo"
#define BLYNK_TEMPLATE_NAME "Kontrol dan Monitoring WOKWI"
#define BLYNK_AUTH_TOKEN "kbhfFZ3pjg-SEHB2oLrM-SAKGyNGxL7n"
#include <Wire.h>
#include <DHT.h>
#include <WiFi.h>
#include <BlynkSimpleEsp32.h>

#define TRIGGER_PIN 25 // Pin trigger sensor ultrasonik
#define ECHO_PIN 26    // Pin echo sensor ultrasonik
#define LED_PIN 5      // Pin untuk lampu LED
#define BUTTON_PIN 4   // Pin untuk push button
#define DHT_PIN 18     // Pin untuk sensor DHT

#define DHT_TYPE DHT22 // Tipe sensor DHT yang digunakan (DHT11, DHT22, DHT21)
DHT dht(DHT_PIN, DHT_TYPE);

int ledState = LOW;
int buttonPressCount = 0;
float temperatureC = 0;
float temperatureF = 0;
float temperatureK = 0;

char ssid[] = "Wokwi-GUEST";
char pass[] = "";
bool buttonState = false;
bool prevButtonState = false;

BLYNK_WRITE(V0)
{
  buttonState = param.asInt(); // Mendapatkan nilai tombol dari Blynk
  if (buttonState)
  {
    ledState = !ledState; // Toggle status LED
    digitalWrite(LED_PIN, ledState);
  }
}

void setup()
{
  Serial.begin(9600);
  pinMode(TRIGGER_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);
  pinMode(LED_PIN, OUTPUT);
  pinMode(BUTTON_PIN, INPUT_PULLUP); // Push button diatur sebagai input dengan pull-up internal

  dht.begin();

  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);
}

void loop()
{
  Blynk.run();

  // Mendapatkan nilai jarak dari sensor ultrasonik dan mengirimkannya ke Blynk
  long duration;
  int distance;

  // Jarak
  digitalWrite(TRIGGER_PIN, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIGGER_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIGGER_PIN, LOW);
  duration = pulseIn(ECHO_PIN, HIGH);
  distance = (duration / 2) / 29.1;
  Blynk.virtualWrite(V1, distance);

  // DHT
  temperatureC = dht.readTemperature();
  if (isnan(temperatureC))
  {
    Serial.println("Failed to read temperature from DHT sensor!");
  }
  else
  {
    temperatureF = temperatureC * 9.0 / 5.0 + 32.0;
    temperatureK = temperatureC + 273.15;
    Blynk.virtualWrite(V2, temperatureC);
    Serial.println(temperatureC);
    Blynk.virtualWrite(V3, temperatureF);
    Serial.println(temperatureF);
    Blynk.virtualWrite(V4, temperatureK);
    Serial.println(temperatureK);
  }

  buttonState = digitalRead(BUTTON_PIN);
  if (buttonState != prevButtonState)
  {
    prevButtonState = buttonState;
    if (buttonState)
    {
      ledState = !ledState; // Toggle status LED
      digitalWrite(LED_PIN, ledState);
      Blynk.virtualWrite(V0, ledState);
      Serial.println(ledState);
    }
  }

  delay(100);
}