As I remember the directions for installing the drivers via the terminal window have the wrong version number of the driver in the directions. Pay attention to syntax closely here.
Open a terminal window and type "ls /dev". You should see something like below. If you don’t see the cu.usbXXX listed it means your drivers aren’t installed correctly yet. Make sure your USB Pro is plugged in!
Copy that unique number identifier and then format it like this in your patch:
If all is well you’ll see that toggle box with an X if it connects.