#if CONFIG_FREERTOS_UNICORE
#define ARDUINO_RUNNING_CORE 0
#else
#define ARDUINO_RUNNING_CORE 1
#endif

#ifndef LED_BUILTIN
#define LED_BUILTIN 13
#endif

#include <LiquidCrystal_I2C.h>

#define I2C_ADDR    0x27
#define LCD_COLUMNS 20
#define LCD_LINES   4

LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);

#include "DHT.h"

#define DHTPIN 16 
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);

void TaskBlink1( void *pvParameters );
void TaskBlink2( void *pvParameters );
void TaskBlink3( void *pvParameters );

void setup() {
  // Init
  lcd.init();
  lcd.backlight();

  dht.begin();

  pinMode(12, INPUT);

  Serial.begin(115200);

  xTaskCreatePinnedToCore(
    TaskBlink1
    ,  "TaskBlink1"
    ,  2048
    ,  NULL
    ,  2
    ,  NULL 
    ,  ARDUINO_RUNNING_CORE);

  xTaskCreatePinnedToCore(
    TaskBlink2
    ,  "TaskBlink2"
    ,  2048
    ,  NULL
    ,  1 
    ,  NULL 
    ,  ARDUINO_RUNNING_CORE);

  xTaskCreatePinnedToCore(
    TaskBlink3
    ,  "TaskBlink3"
    ,  2048
    ,  NULL
    ,  1 
    ,  NULL 
    ,  ARDUINO_RUNNING_CORE);
}

float nhietdo = 0;

void loop(){}

void TaskBlink1(void *pvParameters)
{
  (void) pvParameters;

  for (;;)
  {
    float t = dht.readTemperature();

    nhietdo = t;

    Serial.println(t);
  }
}

void TaskBlink2(void *pvParameters)
{
  (void) pvParameters;

  for (;;)
  {
    lcd.setCursor(0, 0);
    lcd.print("Nhiet do:  " + String(nhietdo));
  }
}
void TaskBlink3(void *pvParameters)
{
  (void) pvParameters;
  pinMode(19, OUTPUT);
  for (;;)
  {
  // These constants should match the photoresistor's "gamma" and "rl10" attributes
    const float GAMMA = 0.7;
    const float RL10 = 50;

    // Convert the analog value into lux value:
    int analogValue = analogRead(34);
    float voltage = analogValue / 1024. * 5;
    float resistance = 2000 * voltage / (1 - voltage / 5);
    float lux = pow(RL10 * 1e3 * pow(10, GAMMA) / resistance, (1 / GAMMA));

    if(lux > 1000){
      digitalWrite(19, HIGH);
    }else{
      digitalWrite(19, 0);
    }
  }
}