/*************************************************************
SMART DEVICES WITH BLYNK APP CONTROL With Brightness of lux
 *************************************************************/

// Template ID, Device Name and Auth Token are provided by the Blynk.Cloud
// See the Device Info tab, or Template settings
#define BLYNK_TEMPLATE_ID "TMPLhqpIZ9uT"
#define BLYNK_TEMPLATE_NAME "IoTApp"
#define BLYNK_AUTH_TOKEN "VGzfIy493beaUCIY6grUUPIhX4ahLMV3"

// Comment this out to disable prints and save space
#define BLYNK_PRINT Serial

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

char auth[] = BLYNK_AUTH_TOKEN;

// WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

// constant to count of lux
const float GAMMA = 0.7;
const float RL10 = 50;

// declare servo for functions
Servo myservo;

// data management and send data from many value of lux and light
void sendData() {
  // declare analogread into light variable
  int light = analogRead(36);
  //declare type of float variable into volt / tegangan
  float voltage = light / 4095. * 5;
  //declare type of float variable into resistance
  float resistance = 2000 * voltage / (1 - voltage / 5);
  //declare type of float variable into lux or light (sun)
  float lux = pow(RL10 * 1e3 * pow(10, GAMMA) / resistance, (1 / GAMMA));

  // declare type of string variable into night
  char* night = "night";
  // declare type of string variable into night
  char* day = "day";

    Blynk.virtualWrite(V2, light); // send data a light into of blynk
    Blynk.virtualWrite(V36, lux); // send data a lux into of blynk

    Serial.print("Sending data...");
    Serial.print(" analog: ");
    Serial.print(light);
    Serial.print(" lux: ");
    Serial.print(lux);

  if(lux < 10){
    myservo.write(90);  
    delay(1000);

    digitalWrite(2, HIGH);          // turn on LED
    Blynk.virtualWrite(V0, 255);          // turn on LED in blynk

    Blynk.virtualWrite(V3, night);
    Serial.print(", Close Windows");
    Serial.println(", It's night now");

    }
  else {
    digitalWrite(2, LOW);           // turn off LED

    Blynk.virtualWrite(V0, 0);           // turn off LED in blynk
    
    myservo.write(0);
    delay(1000);    

    Blynk.virtualWrite(V3, day);
    Serial.print(", Open Windows");
    Serial.println(", It's day now");
    }


}


// declare function of timer
BlynkTimer timer;

// This function will be called every time Slider Widget
// in Blynk app writes values to the Virtual Pin V0
BLYNK_WRITE(V0)
{
  int pinValue = param.asInt(); // assigning incoming value from pin V0 to a variable

  // switch to close windows and turn on lamp
  if(pinValue == 255)
  {    
    // myservo.write(0);  
    // delay(1000);             
    // myservo.write(45);  
    // delay(1000);
    myservo.write(90);  
    delay(1000);

    digitalWrite(2, HIGH);

    // Serial.println("Close Windows");
    // Serial.println("Lamp is On");

  }

  // switch to open windows and turn off lamp
  else
  {

    digitalWrite(2, LOW);
    // myservo.write(90); 
    // delay(1000);          
    // myservo.write(90);
    // delay(1000);    
    myservo.write(0);
    delay(1000);         

    // Serial.println("Open Windows");
    // Serial.println("Lamp is Off");

  }

}



// first or begin condition
void beginCondition()
{
  myservo.write(0);
}



// condition setup
void setup()
{
  // Debug console
  pinMode(36, INPUT);
  pinMode(2, OUTPUT);
  myservo.attach(13);

  Serial.begin(115200);

  Blynk.begin(auth, ssid, pass);
  // You can also specify server:
  //Blynk.begin(auth, ssid, pass, "blynk.cloud", 80);

  beginCondition();

  timer.setInterval(1L, sendData);

}



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