Hi @Brandon-Wightman
Please review this diagram, and you can see the serial port is not a functional item in "standalone dongle mode", hence why it is DNI'd.
https://docs.modalai.com/microhard-usb-carrier/#block-diagram
If you are referring to the Microhard's UART port that we label "pDDL UART" here: https://docs.modalai.com/microhard-add-on-datasheet/#bottom-of-board
that is present in either standalone or Voxl configs. You are right, we neglected to post that pinout, since you would actually be the first person in almost 4 years since we launched that product to ask for it. Please clarify if that is what you are after, and we can update our tech docs to include that pinout.
However, we do not have Software for it, so you would be trail-blazing both HW and SW efforts here if you plan to develop it on your own.
Thanks!
