With the new insider preview win 10 iot 10556 the serial port from raspberry pi2 is now available. I want to test it but my SerialDevice is always NULL. Here is my code:

private SerialDevice serialPort = null;

public MainPage()

private async void InitSerial()
    string portName = "UART0";

    string aqs = SerialDevice.GetDeviceSelector(portName);

    var myDevices = await DeviceInformation.FindAllAsync(aqs, null);

    if (myDevices.Count == 0)
        Status.Text = "Device not found...";

    SerialDevice device = await SerialDevice.FromIdAsync(myDevices[0].Id);

    Status.Text = device.PortName;


Does somebody try it with success? Where is my failure?


And here is the answer for the problem. I have to add these lines to the Package.appxmanifest file.

  <DeviceCapability Name="serialcommunication">
    <Device Id="any">
      <Function Type="name:serialPort" />

Now the serial connection with the on board Rx/TX Pins works fine.

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