Hi Josh,
As far as I could have understood from the guidelines, one does not need to install any drivers after connecting PulsePal to Ubuntu.
When I connect USB cable of my PulsePal to the Ubuntu computer, I do not see it in the devices or in the virtual ports of Arduino software (as I usually do on Windows).
When I try to connect it via Matlab, it gives me this error:
[attachment=29]
Thank you very much for your help!