Hey @CAProjects!
Yep that’s right, the MCU will need to be flashed with the firmware in order for the analogue ports to be used. If you do happen to have a JLink programmer or Holtek programmer, I could provide the BIN file and some instructions for you to do it yourself (incidentally, that’s what those headers you mention are for - just MCU programming headers! The labels are my idea of a little joke to my fellow hardware hackers )
And yep, an annotated image of the UI PCB sounds sensible, I’ll put that together ASAP! I think a little ‘fact page’ would be useful actually. I’ll get to work on that.
Edit: just seen @Supernovali’s comment too - I’ll create a page with the BIN file, schematic and a labeled image, seems like it’ll come in handy!