#define PIN_LDR 34
#define PIN_LED 2
#define BLYNK_TEMPLATE_ID "TMPLqiU62nCM"
#define BLYNK_DEVICE_NAME "DHT22"
#define BLYNK_AUTH_TOKEN "leIL_vwgsGdju92V4Yow4ZQfq3G1X4yt"

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

const int DHT_PIN = 15;
DHTesp dhtSensor;
double lux;

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

BlynkTimer timer;

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

void alertTemp(float temperature){
  if(temperature > 50){
    Serial.println("suhu tinggi");
    Blynk.virtualWrite(V4, "data suhu tinggi");
  }else if (temperature < 5){
    Serial.println("suhu rendah");
    Blynk.virtualWrite(V4, "data suhu rendah");
  }else{
    Blynk.virtualWrite(V4, "data suhu normal");
  }
}

void alertHumid(float humid){
  if(humid > 70){
    Serial.println("humid tinggi");
    Blynk.virtualWrite(V6, "humidity tinggi !!!");
  }else{
    Blynk.virtualWrite(V6, "humidity normal !!!");
  }
}

void luxSensor () {
  int analogValue = analogRead(25);
  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);
}

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);
 alertTemp(data.temperature);
 alertHumid(data.humidity);
 Blynk.virtualWrite(V2, data.humidity);//mengirimkan data ke Virtual pin di Blynk Cloud
}

void setup() {
  pinMode(PIN_LED, OUTPUT);
  Serial.begin(115200);
  pinMode(12, OUTPUT);
}

void loop() {
  luxSensor();
  delay(1000);
  
  if (lux >= 50){
      digitalWrite(PIN_LED, 0);
  //  Serial.print("Status: ");
  //  Serial.println("Terang");
  } else {
      digitalWrite(PIN_LED, 1);
  //  Serial.print("Status: ");
  //  Serial.println("Gelap");
  }
  delay(100);
}