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function serialportlist is not working

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When I use the function 'serialportlist' to identify the serial ports on my laptop i get a 1x0 empty string array.
ports=serialportlist
ports =
1×0 empty string array
I think, I should get at least 2 ports, because I have 2 USB ports on my laptop.
Im using matlab 2019b.
Do i need to instal some packages for using serialportlist?

  1 Comment

Walter Roberson
Walter Roberson on 24 Jan 2020
USB by itself is not enough: you would need to have a connected device that is responding as offering a virtual com port.

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Accepted Answer

Stijn Haenen
Stijn Haenen on 25 Jan 2020
I do not know if i have such a device. I want to play audio files via different USB speakers, do you have any tips how to do this?

  1 Comment

Walter Roberson
Walter Roberson on 25 Jan 2020
USB speakers would not advertise themselves as offering virtual com port services so using serialport() would not be appropriate.
See https://www.mathworks.com/help/audio/ref/audioplayerrecorder.getaudiodevices.html

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