public async void sendData(WeatherData wd)
        {
            // Create a client
            HttpClient httpClient = new HttpClient();

            // Add a new Request Message
            HttpRequestMessage requestMessage = new HttpRequestMessage(HttpMethod.Get, "https://io.adafruit.com/api/groups/weather/send.json?temperature=" + wd.TemperatureinF + "&pressure=" + wd.Pressureinmb );

            // Add our custom headers
            requestMessage.Headers.Add("X-AIO-Key", AIO);

            // Send the request to the server
            HttpResponseMessage response = await httpClient.SendAsync(requestMessage);

            // Just as an example I'm turning the response into a string here
            string responseAsString = await response.Content.ReadAsStringAsync();
            //Debug.WriteLine(responseAsString);
 
            }
        private async Task<WeatherData> ReadWeatherData()
        {
            WeatherData wd = null;
            try
            {
                if (BMP280 == null)
                {
                    //Create a new object for our barometric sensor class
                    BMP280 = new BMP280();
                    //Initialize the sensor
                    await BMP280.Initialize();
                }

                //Create variables to store the sensor data: temperature, pressure and altitude. 
                //Initialize them to 0.
                float temp = 0;
                float pressure = 0;
                float altitude = 0;

                //Create a constant for pressure at sea level. 
                //This is based on your local sea level pressure (Unit: Hectopascal)
                const float seaLevelPressure = 1018.34f;

                temp = await BMP280.ReadTemperature();
                temp = ConvertUnits.ConvertCelsiusToFahrenheit(temp);
                pressure = await BMP280.ReadPreasure();
                pressure = ConvertUnits.ConvertPascalToMillibar(pressure);
                altitude = await BMP280.ReadAltitude(seaLevelPressure);
                altitude = ConvertUnits.ConvertMeterToFoot(altitude);

                wd = new WeatherData();
                wd.Created = DateTime.Now;
                wd.TemperatureinF = temp;
                wd.Pressureinmb = pressure;
            }
            catch (Exception ex)
            {
                Debug.WriteLine(ex.Message);
            }
            return wd;
        }