I learned how to use git today and added a Repository on git hub for the code and board files.

Used Mouser's free Library Loader to create a package outline for the MCP9904T.

The website for Library Loader is https://componentsearchengine.com If you particular editor does not have the components they will have them or they have a form to help generate one using values from the data sheet.

I am using KiCad, but it also works for Eagle, OrCAD, Altium, and several others.

Found some good articles on driving the WS2812B LEDs.

• https://productize.be/driving-ws2812-programmable-rgb-leds-using-hardware-spi/
• https://cpldcpu.wordpress.com/2014/01/14/light_ws2812-library-v2-0-part-i-understanding-the-ws2812/
  
• Detecting LED String Length
  https://cpldcpu.wordpress.com/2014/11/16/ws2812_length/

Here is what I was able to add to the KiCad Drawings Today.

The details are slowly coming together. I'm hoping to use the assigned footprints to plan the shape and size of the Flex board.