Parts with top and bottom layer

[vanepp]

Yes, the bbc microbit does so. The procedure is fairly complex so you would be best to use the referenced howto though. The part is here:

Improved Micro:bit part

Here is an improved Micro:bit part. This one has schematic and pcb as well as breadboard. Pcb uses an edge connector (because that is how the Micro:bit connects) to connect to the pcb. edit: I just replaced this with a newer version of the part which has been created as a board and tested. Microbit.fzpz (35.1 KB) and a sketch that uses it (because the new part has no silkscreen text …) microbit-breakout.fzz (39.2 KB) Peter

Peter