#define BLYNK_PRINT Serial
#define BLYNK_TEMPLATE_ID "TMPL0-Zt08Mn"
#define BLYNK_DEVICE_NAME "PROGRAM BLYNK LDR DAN DHT"
#define BLYNK_AUTH_TOKEN "Rp3zKpapXSabNFiB8O8qjJh8oDLWqdM9"

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

// Relay
#define relay 2

// Sensor DHT22
const int DHT_PIN = 15;
DHTesp dhtSensor;

// Sensor LDR
const float GAMMA = 0.7;
const float RL10 = 50;


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

BlynkTimer timer;

// // Virtual Pin untuk Lampu LED
BLYNK_WRITE(V3)
{
  if(param.asInt()==1){
    digitalWrite(relay, HIGH);
  }  
  else{
    digitalWrite(relay, LOW);
  }
}

BLYNK_CONNECTED()
{
  Serial.println("Tersambung");
  Blynk.syncVirtual(V3);
}

void sendSensor()
{
  int analogValue = analogRead(36);
  float voltage = analogValue * 5/4095.0;
  float resistance = 2000 * voltage / (1 - voltage / 5);
  float lux = pow(RL10 * 1e3 * pow(10, GAMMA) / resistance, (1 / GAMMA));
  Serial.print("Lux: ");
  Serial.println(lux);
  Blynk.virtualWrite(V0, lux); 

  TempAndHumidity data = dhtSensor.getTempAndHumidity();
  Serial.println("Temp: " + String(data.temperature, 2) + "°C");
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");
  Serial.println("---");
  float t = dhtSensor.getTemperature();
  float h = dhtSensor.getHumidity();
  if(t >= 38 || lux >= 40 || h >= 55){
    digitalWrite(relay, LOW);
    Blynk.virtualWrite(V3, 0);
  }
  else{
    digitalWrite(relay, HIGH);
    Blynk.virtualWrite(V3, 1);
  }
  Blynk.virtualWrite(V1, data.temperature);
  Blynk.virtualWrite(V2, data.humidity);
  // Blynk.virtualWrite(V3, relay);
  //mengirimkan data ke Virtual pin di Blynk Cloud
}

void setup()
{
  // pinMode(LED, OUTPUT);
  pinMode(relay, OUTPUT);
  Serial.begin(9600);
  Blynk.begin(auth, ssid, pass);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  timer.setInterval(1000L, sendSensor);
}

void loop()
{
  sendSensor();
  Blynk.run();
  timer.run();
}