I am in two minds whether to go as a single board of to split the board into two?
Here is the a schematic with the keyboard separated from the PLA:
The advantages are:
- One project becomes two smaller projects.
- A smaller footprint (the boards can be stacked).
- I can finish the keyboard layout and get the PCB board made.
- I can drop the PLA if I go for a microprocessor project.
I think getting the board made (as it takes four weeks) sounds like a good idea.
Stacking the boards (the PLA underneath) seem pretty straight forward.