SerialPort problems in UWP

Question

SerialPort problems in UWP

Mingi Kim 21

Hi, Microsoft.
I'm making an app communicate with MWM2 in UWP. I know I have to use Neurosky's API(Window ver.), but it doesn't work.
Well, first i tried RFCOMM communicate but, it failed. Because DataWriter can't use ASCII, DataReader can't communicate with device(The error occurred like server cut off the stream).
So I found another way, finally I found Bluetooth Serial Communicate. MWM2 connected with COM3, COM4.
I read it and I thought How many ports left? So I use SerialPort.GetPortNames(). However, the error occurred : Enumeration of serial port names is not supported on the current platform.
I wonder UWP can not use SerialPort communcation?

Nico Zhu (Shanghai Wicresoft Co,.Ltd.) 12,871 Reputation points

2021-08-10T06:19:22.137+00:00

Could you mind share your OS version and the app's target version, what device you tested with?
Mingi Kim 21 Reputation points

2021-08-10T07:06:21.69+00:00

Ooops Sorry, I use PC and the OS version is Windows 10(last update done) And that MWM2 is a brainwave measure device
Victor Mazin 0 Reputation points

2023-06-21T17:47:56.3566667+00:00

Hi,

How can I use serial ports in UWP?

I received error: "Enumeration of serial port names is not supported on the current platform"
Anonymous

2023-06-22T23:43:32.7433333+00:00

FWIW: I've got an app on the store today that uses serial ports and can absolutely write ascii to datawriter. Source code is on github. Finding a serial port is in mainpage.xaml.cs about line 58 ("FillSerialCombobox").

You can write Ascii in two ways: convert your string to a byte array and then write the byte array, or by setting the UnicodeType to "Utf8". Ascii characters in your string will be written out as ASCII (and the rest will be UTF8, which for you might be a bug.)