Wall-embed model(s)

There is currently only one wall embed model, the Original Wall-Embed OpenERV.

It is under development, but you can download the design in it's current state.  Right now it uses straws, I plan to just print the regenerator in the future, this costs about the same and simplifies sourcing.

source code as of nov 14 2022, there is no microcontroller source code yet, but the CAD design is unlikely to change much from this point onwards:

https://drive.google.com/drive/folders/1fmeV-8RBXQymtU4SNTWpxzOApMeZksaO?usp=sharing