//ArduinoToAppMultiVal.ino  Chris Ward 13/04/2021 23:05:14

DHT_Unified dht(DHTPIN, DHTTYPE);

//vars
unsigned long lgUpdateTime;
unsigned long igID = 1;
float fgTemperature;
float fgHumidity;

void setup()
{
         // Initialize device.
          dht.begin();
         Serial.begin(9600);
         lgUpdateTime = millis();
}

void loop()
{
	     if(millis() - lgUpdateTime > 5000) //Loop approx every 5 seconds
         {
                  lgUpdateTime = millis();
                  
                  //Collect sensor data

                  //Temperature
                  sensors_event_t event;

                  dht.temperature().getEvent(&event);

                  if (isnan(event.temperature))
                  {
                         fgTemperature = 99999.0;
                  }
                  else 
                  {
                         fgTemperature = event.temperature;
                  }

                  //Humidity
                  dht.humidity().getEvent(&event);

                  if (isnan(event.relative_humidity))
                  {
                         fgHumidity = 99999.0;
                  }
                  else
                  {
                         fgHumidity = event.relative_humidity;
                  }
                  
                  if (Serial.connected())
                  {
                              //To App via Bluetooth

                              if ((fgTemperature != 99999.0) && (!fgHumidity != 99999.0))
                              {
                                 Serial.print(fgTemperature,2); 
                                 Serial.print("|");
                                 Serial.print(fgHumidity,2); 
                                 Serial.print("|");
                                 Serial.print(igID);   //process ID
                                 Serial.println();     //This tells App "End of Data"
                                                       //= Ascii LineFeed Char Num 10
                              }
                  }
         }
}