Atmospheric Condition Data Acquisition

#include <BMP085.h>
#include <PietteTech_DHT.h>
#include <Ubidots.h>

#define DHTTYPE  DHT11       // Sensor type DHT11/21/22/AM2301/AM2302
#define DHTPIN   A4          // Analog pin for communications

PietteTech_DHT DHT(DHTPIN, DHTTYPE);
BMP085 myBarometer;

float temperature;
float pressure;
float atm;
float altitude;
float h;
float t;
float f;

    // Establish a webhook to Ubidots
const char *WEBHOOK_NAME = "Badger_Hobbit_2.0";
Ubidots ubidots("webhook", UBI_PARTICLE);

void myHandler(const char *event, const char *data)
{
  Serial.println();
  Serial.println(event);
  Serial.println(Time.timeStr());
}

void setup()
{
  Serial.begin(9600);
  DHT.begin();
  myBarometer.init();
  Particle.subscribe("Handshake_Diligent_Octopus", myHandler);
  Particle.subscribe("Handshake_moneypit", myHandler);
}

void loop()
{
        // BMP180 READINGS -----------------------------------------------------------
  Serial.print("\n");
  Serial.println("-----Retrieving information from BMP180 sensor:");
  
  temperature = myBarometer.bmp085GetTemperature(myBarometer.bmp085ReadUT());   // Get the temperature, bmp085ReadUT MUST be called first
  pressure = myBarometer.bmp085GetPressure(myBarometer.bmp085ReadUP());         // Get the temperature
  altitude = myBarometer.calcAltitude(101900);                                  // Get the altitude
  atm = pressure / 101325;
  
  Serial.print("Temperature: ");
  Serial.print(temperature, 2);         // Display 2 decimal places
  Serial.println(" Celsius");

  Serial.print("Pressure : ");
  Serial.print(pressure, 0);            // Whole number only.
  Serial.println(" Pa");
  
  Serial.print("Pressure : ");
  Serial.print(atm, 4);               // Display 4 decimal places
  Serial.println(" atm");

  Serial.print("Altitude: ");
  Serial.print(altitude, 2);            // Display 2 decimal places
  Serial.println(" m");

  Serial.println();
 
        // DHT11 READINGS -----------------------------------------------------------

  Serial.print("\n");
  Serial.println("-----Retrieving information from DHT11 sensor:");
  
  int result = DHT.acquireAndWait(5000);        // Wait up to 5 seconds. Input a value for max wait time or leave blank for indefinite.

  switch (result) {
  case DHTLIB_OK:
    Serial.println("OK");
    break;
  case DHTLIB_ERROR_CHECKSUM:
    Serial.println("Error\n\r\tChecksum error");
    break;
  case DHTLIB_ERROR_ISR_TIMEOUT:
    Serial.println("Error\n\r\tISR time out error");
    break;
  case DHTLIB_ERROR_RESPONSE_TIMEOUT:
    Serial.println("Error\n\r\tResponse time out error");
    break;
  case DHTLIB_ERROR_DATA_TIMEOUT:
    Serial.println("Error\n\r\tData time out error");
    break;
  case DHTLIB_ERROR_ACQUIRING:
    Serial.println("Error\n\r\tAcquiring");
    break;
  case DHTLIB_ERROR_DELTA:
    Serial.println("Error\n\r\tDelta time to small");
    break;
  case DHTLIB_ERROR_NOTSTARTED:
    Serial.println("Error\n\r\tNot started");
    break;
  default:
    Serial.println("Unknown error");
    break;
  }
  
  h=DHT.getHumidity();
  t=DHT.getCelsius();
  f=DHT.getFahrenheit();
  
  
  Serial.print("Humidity (%): ");
  Serial.println(h, 2);

  Serial.print("Temperature (oC): ");
  Serial.println(t, 2);

  Serial.print("Temperature (oF): ");
  Serial.println(f, 2);
  
  Serial.println();
  Serial.println();
  Serial.println();

        // Publish both sensor's readings
  //Particle.publish("Badger_Hobbit_DHT11_Readings", String::format("{\Hum(\%)\": %4.2f, \"Temp(oC)\": %4.2f, \"Temp(oF)\": %4.2f}", h,t,f));
  //Particle.publish("Badger_Hobbit_BMP180_Readings", String::format("{\"Temp(\%)\": %4.2f, \"Pres(\%)\": %4.2f, \"Alt(\%)\": %4.2f}", temperature, pressure, altitude));
  
        // Publish Handshake
  Particle.publish("Handshake_Badger_Hobbit", String(Time.timeStr()));

        // Send varibles to Ubidots via a webhook
  ubidots.add("Humidity", h);
  ubidots.add("TempC", t);
  ubidots.add("Pressure", pressure);

        // SEND GPS COORDINATES TO UBIDOTS -----------------------------------------------------------

  float value = analogRead(A0);
  
        // Harcoded Coordinates
  float latitude = 35.15825471519051;
  float longitude = -80.7692742929311;

        // Reserves 10 bytes of memory to store context keys values, add as much as needed
  char *str_lat = (char *)malloc(sizeof(char) * 10);
  char *str_lng = (char *)malloc(sizeof(char) * 10);

        // Saves the coordinates as char
  sprintf(str_lat, "%f", latitude);
  sprintf(str_lng, "%f", longitude);

        // Reserves memory to store context array
  char *context = (char *)malloc(sizeof(char) * 50);

        // Adds context key-value pairs
  ubidots.addContext("lat", str_lat);
  ubidots.addContext("lng", str_lng);

        // Builds the context with the coordinates to send to Ubidots
  ubidots.getContext(context);

        // Sends the position
  ubidots.add("position", value, context); // Change for your variable name

  bool bufferSent = false;
  bufferSent = ubidots.send(WEBHOOK_NAME, PUBLIC); // Will use particle webhooks to send data

  if (bufferSent) {
        Serial.println("Values sent by the device");
        Serial.println(Time.timeStr());
    }

        //  Free memory
 free(str_lat);
 free(str_lng);
 free(context);

 delay(260000);      // Wait 260 seconds
}