We are experimenting with making our PUREmodules compatible with a LEGO block by only using a PCB.
We have a few designs we are testing. if you want to try one out, here is the oshpark link
The general idea here is that you can build modules into your lego creation without tape or glue to keep things in place. By adding one simple Printed Circuit Board, PCB, the modules can plug into the lego adaptor board. Everything should be neat and clean and no wires.