//>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Test DHT11 Sensor and LEDs
//======================================== Including the libraries.
#include "DHT.h"
//======================================== 

//======================================== DHT sensor settings (DHT11).
#define DHTPIN 15 //--> Defines the Digital Pin connected to the DHT11 sensor.
#define DHTTYPE DHT11 //--> Defines the type of DHT sensor used. Here used is the DHT11 sensor.
DHT dht11_sensor(DHTPIN, DHTTYPE); //--> Initialize DHT sensor.
//========================================

// Defines the Digital Pin of the "On Board LED".
#define ON_Board_LED 2 

// Defines GPIO 13 as LED_1.
#define LED_01 13 

// Defines GPIO 12 as LED_2.
#define LED_02 12 

//======================================== Variables for DHT11 sensor data.
float send_Temp;
int send_Humd;
String send_Status_Read_DHT11 = "";
//======================================== 

// ________________________________________________________________________________ Subroutine to read and get data from the DHT11 sensor.
void get_DHT11_sensor_data() {
  Serial.println();
  Serial.println("-------------get_DHT11_sensor_data()");
  
  // Reading temperature or humidity takes about 250 milliseconds!
  // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
  
  // Read temperature as Celsius (the default)
  send_Temp = dht11_sensor.readTemperature();
  
  // Read Humidity
  send_Humd = dht11_sensor.readHumidity();
  
  // Read temperature as Fahrenheit (isFahrenheit = true)
  // float ft = dht11_sensor.readTemperature(true);

  // Check if any reads failed.
  if (isnan(send_Temp) || isnan(send_Humd)) {
    Serial.println("Failed to read from DHT sensor!");
    send_Temp = 0.00;
    send_Humd = 0;
    send_Status_Read_DHT11 = "FAILED";
  } else {
    send_Status_Read_DHT11 = "SUCCEED";
  }
  
  Serial.printf("Temperature : %.2f °C\n", send_Temp);
  Serial.printf("Humidity : %d %%\n", send_Humd);
  Serial.printf("Status Read DHT11 Sensor : %s\n", send_Status_Read_DHT11);
  Serial.println("-------------");
}
// ________________________________________________________________________________

//________________________________________________________________________________ VOID SETUP()
void setup() {
  // put your setup code here, to run once:
  
  Serial.begin(115200); //--> Initialize serial communications with the PC.

  pinMode(ON_Board_LED,OUTPUT); //--> On Board LED port Direction output.
  pinMode(LED_01,OUTPUT); //--> LED_01 port Direction output.
  pinMode(LED_02,OUTPUT); //--> LED_02 port Direction output.
  
  digitalWrite(ON_Board_LED, HIGH); //--> Turn on Led On Board.
  digitalWrite(LED_01, HIGH); //--> Turn on LED_01.
  digitalWrite(LED_02, HIGH); //--> Turn on LED_02.

  delay(2000);

  digitalWrite(ON_Board_LED, LOW); //--> Turn off Led On Board.
  digitalWrite(LED_01, LOW); //--> Turn off Led LED_01.
  digitalWrite(LED_02, LOW); //--> Turn off Led LED_02.

  // Setting up the DHT sensor (DHT11).
  dht11_sensor.begin();

  delay(2000);
}
//________________________________________________________________________________ 

//________________________________________________________________________________ VOID LOOP()
void loop() {
  // put your main code here, to run repeatedly
  
  get_DHT11_sensor_data();
  
  digitalWrite(LED_01, !digitalRead(LED_01));
  digitalWrite(LED_02, !digitalRead(LED_02));
  
  delay(2000);
}
//________________________________________________________________________________ 
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