BLYNKBOARD : DHT_RELAY_LED_BUTTON

//  Board to Sensors / Actuators Mapping 
// 
//1. Input Switch 1 : GPI0 03 (D9)  >> Button 1 
//2. Input Switch 2 : GPI0 01 (D10) >> Button 2 
//3. Output Relay 1 : GPI0 05 (D1)
  >> Relay 1 
//4. Output Relay 2 : GPI0 04 (D2)
  >> Relay 2 
//5. Output LED : GPI0 12 (D6)
      >> LED 
//6. Temperature & Humidity Sensor 
//DHT-11 : GPI0 14             (D5) >> DHT Sensor

#include "DHT.h"
#define DHTPIN 14 

#define DHTTYPE DHT11

int inputSwtich1 = 3;
int inputSwtich2 = 1;

int outputRelay1 = 5;
int outputRelay2 = 4;
int led = 12;
int dhtPin = 14;

DHT dht(DHTPIN, DHTTYPE);

void setup() {

  Serial.begin(115200);  // setting up serial monitor 
  
  // put your setup code here, to run once:
  //INPUT, OUTPUT, or INPUT_PULLUP.  
  
  pinMode(inputSwtich1, INPUT);
  pinMode(inputSwtich2, INPUT);
  pinMode(outputRelay1, OUTPUT);
  pinMode(outputRelay2, OUTPUT);
  pinMode(led, OUTPUT);
  Serial.println(" PinMode  : Done ");
  // setting initial conditions : 

  digitalWrite(outputRelay1, LOW);
  digitalWrite(outputRelay2, LOW);
  digitalWrite(led, LOW);
 Serial.println(" Initialisation :  Done ");
  //
  dht.begin();
  
}

void loop() {
  // put your main code here, to run repeatedly:
  // Reading Sensor Data : 

    delay(2000);
    // Reading temperature or humidity takes about 250 milliseconds!
      // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
      float h = dht.readHumidity();
      // Read temperature as Celsius (the default)
      float t = dht.readTemperature();
      // Read temperature as Fahrenheit (isFahrenheit = true)
      float f = dht.readTemperature(true);
    
      // Check if any reads failed and exit early (to try again).
      if (isnan(h) || isnan(t) || isnan(f)) {
        Serial.println(F("Failed to read from DHT sensor!"));
        return;
      }

      // Compute heat index in Fahrenheit (the default)
      float hif = dht.computeHeatIndex(f, h);
      // Compute heat index in Celsius (isFahreheit = false)
      float hic = dht.computeHeatIndex(t, h, false);
    
      Serial.print(F("Humidity: "));
      Serial.print(h);
      Serial.print(F("%  Temperature: "));
      Serial.print(t);
      Serial.print(F("°C "));
      Serial.print(f);
      Serial.print(F("°F  Heat index: "));
      Serial.print(hic);
      Serial.print(F("°C "));
      Serial.print(hif);
      Serial.println(F("°F"));
  
  // Read switch 1 & 2 

        int val1  = !digitalRead(inputSwtich1);
        
        digitalWrite(led, val1);
        digitalWrite(outputRelay1, val1);
        digitalWrite(outputRelay2, val1);
//        Serial.println(" Turning on Relays and LED Devices :  Done ");
//        digitalWrite(outputRelay1, HIGH);
//        digitalWrite(outputRelay2, HIGH);
//        //digitalWrite(led, HIGH);
//        delay(2000);
//         Serial.println(" Turning off Relays and LED Devices :  Done ");
//        digitalWrite(outputRelay1, LOW);
//        digitalWrite(outputRelay2, LOW);
//        
        delay(2000);
  
}