Today I finished the Prototyping PCB that can be used inside the modules. I think this circuit will save people a lot of time when soldering shift-registers, (de)multiplexers and other components.
Attached is a .zip with all board-layers as PNG, courtesy of www.circuitpeople.com, an online service to view and share your Gerber files. I used these files to create the layered preview in Photoshop.
Tips, suggestions or other feedback is appreciated!
I just ordered a batch of prototypes, if the files are accepted by the PCB fab I should have them within 10 days. Will post info and pictures as soon as they have arrived ;-)