After a lot of revisions, changes, corrections and doubting, I finally decided to commit to a first board production. We will see if this comes out good. The design is still untested. Just reporting on the progress (which is glacially slow).
@benhub - ok, there are some things you need to consider, and that is the space of the adapter.
I read now i "suggested" this adapter, but let me clear it it is not tested, maybe a language barrier from my side.
You need to consider that it fits in the board and do not crash into other compontens, like the arduino.
If it does, you maybe need to consider some other board or even build one.
