#define BLYNK_PRINT Serial
#define BLYNK_TEMPLATE_ID "TMPLZ0l3TsGO"
#define BLYNK_DEVICE_NAME "Temp and Humid Monitor"
#define BLYNK_AUTH_TOKEN "sbkIUGMR7Brf5-HUFtptUClI39pVz2DO"
#define LED 25
#define LED2 33

#include <WiFi.h>             //driver modul Wifi dalam ESP32
#include <WiFiClient.h>       //driver modul Wifi dalam ESP32
#include <BlynkSimpleEsp32.h>
#include "DHTesp.h"
#include <ESP32Servo.h>

const float GAMMA = 0.7;    //Untuk konversi pembacaan LDR menjadi volt
const float RL10 = 50;      //Untuk konversi nilai resistansi menjadi LUX
const int DHT_PIN = 15;
DHTesp dhtSensor;
Servo myServo;

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

BlynkTimer timer;

void sendSensor()
{
 TempAndHumidity  data = dhtSensor.getTempAndHumidity();
 Serial.println("Temp: " + String(data.temperature, 2) + "°C");
 Serial.println("Humidity: " + String(data.humidity, 1) + "%");
 Serial.println("---");
 Blynk.virtualWrite(V0, data.temperature);  //mengirimkan data ke Virtual pin di Blynk Cloud
 Blynk.virtualWrite(V1, data.humidity);     //mengirimkan data ke Virtual pin di Blynk Cloud

  int analogValue = analogRead(34);         //15 adalah pin sensor LDR
    float voltage = analogValue * 5/4095.0;   //4095 adalah range sensor LDR di ESP32
    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(V2, lux);
    if (lux >= 50){
      Serial.println("Status: Terang");
      //Serial.println("Terang");
      digitalWrite(LED2, HIGH);
      Blynk.virtualWrite(V4,1);
    } else {
      Serial.println("Status: Gelap");
      //Serial.println("Gelap");
      digitalWrite(LED2, LOW);
      Blynk.virtualWrite(V4,0);
    }
    delay(100);
  
}

//Script tombol LED dari blynk ke wokwi
BLYNK_WRITE(V3){
  int pinVal=param.asInt();
  digitalWrite(LED,pinVal);
  //digitalWrite(LED, HIGH);
}

//Script tombol Servo dari blynk ke wokwi
BLYNK_WRITE(V5){
  int btnServo=param.asInt();
  if(btnServo==1){
  myServo.write(180);
  }else{
    myServo.write(0);
  }
}

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

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