private async void InitializeI2CDevice() { try { //Todo string advanced_query_syntax = I2cDevice.GetDeviceSelector(I2C_CONTROLLER_NAME); DeviceInformationCollection device_information_collection = await DeviceInformation.FindAllAsync(advanced_query_syntax); string deviceId = device_information_collection[0].Id; I2cConnectionSettings htdu21d_connection = new I2cConnectionSettings(HTU21D.HTDU21D_I2C_ADDRESS); htdu21d_connection.BusSpeed = I2cBusSpeed.FastMode; htdu21d_connection.SharingMode = I2cSharingMode.Shared; htdu21d = await I2cDevice.FromIdAsync(deviceId, htdu21d_connection); rootPage.NotifyUser("Status is Good", NotifyType.StatusMessage); HTU21DSensor = new HTU21D(ref htdu21d); if (HTU21DSensor != null) { ReadSensorTimer = new DispatcherTimer(); ReadSensorTimer.Interval = TimeSpan.FromMilliseconds(3000); ReadSensorTimer.Tick += Timer_Tick; ReadSensorTimer.Start(); } } catch (Exception e) { HTU21DSensor = null; Debug.WriteLine(e.ToString()); rootPage.NotifyUser("InitializeI2CDevice error", NotifyType.ErrorMessage); return; } }