/**
   ESP32 + DHT22 Example for Wokwi
   
   https://wokwi.com/arduino/projects/322410731508073042
*/

#define BRIGHTNESS 2 

const float GAMMA = 0.7;
const float RL10 = 50;

void setup() {
  Serial.begin(115200);
  pinMode(BRIGHTNESS, INPUT);
}

void loop() {
  getBrightness();
  delay(1000);
}

void getBrightness() {
  int analogValue = analogRead(BRIGHTNESS);
  float voltage = analogValue * 5/4095.0;
  float resistance = 2000 * voltage / (1-voltage/5);
  float lux = pow(RL10 * 1e3 * pow(10, GAMMA) / resistance, (1/GAMMA));
  
  if(lux >= 10000){
    Blynk.virtualWrite(V6, "Sunny");

  }
  else if (lux >= 1000 && lux <=10000){
    Blynk.virtualWrite(V6, "Overcast");
  }
  else if (lux >= 100 && lux <=1000){
    Blynk.virtualWrite(V6, "Partly Cloudy");  
  }
  else {
    Blynk.virtualWrite(V6, "Night time");   
  }
  
}

/*
BLYNK_WRITE(V6) {
  int brightness_State = param.asInt(); 

}
*/