hey HalloweenBob !! good to see you back around here. As you noticed many things have change.
First of all the new version of the notochord is released and it contains a new sensor fusion algorithm that is much more stable and accurate. You can download and install a pre-configured version of Raspbian containing it from our downloads page.
There's now a "Custom node" on the blender add-on that might be useful for you to convert the capture stream in text. Let me know if you need support on modifying the script you already have.
There's no dedicated info page for the KC 2.3, but it's really similar to the previous revision apart from the fact that the address can be set with the jumper on
The uppermost positions sets it as 0 and the lowermost as 2.
The one thing to keep is mind is Not to live-plug this revision of the KCs while the Hub is powered or it might burn down the buck converter!! Take a look at this videos were we go though the most common problems the participants of the 2nd beta-testing program encountered. https://forum.chordata.cc/d/132-beta-testing-troubleshooting-video-series
looking forward to see those skeletons dancing!