Firefly, MIDI, cont...

Hello All,

Quick question distilling something long I posted yesterday...

I am trying to do two things at once:  1) use analog data from an arduino to manipulate geometry in Grasshopper and 2) send that data via serial to an external program to play as MIDI. 

The problem is, I am using a third-party (Spikenzie Labs) serial-to-midi converter that cannot speak to the COM port while Firefly also does.   Bear with me, as I am just starting to figure this out, but I imagine the following possibilities:

1.  Hardwire an actual MIDI-out into my prototype and code it so that the signal is sent this way.  Get a MIDI-to-USB cable and go into a different COM port.

2.  Set up a virtual serial port?  No idea if this is a thing.

3.  Internalize the serial-to-midi conversion/TX to my Grasshopper/Firefly setup.  I don't really know what this entails.  

Any thoughts?

Thanks as always for all of your digital trailblazing...

Josh