In order to use this expansion board on v0.3 series Speeduinos, noisymime will need to add a board description to TunerStudio, including new control pin designations, so the options and features are selectable. This PSB is offered here as an open-source design, and is generic in nature, with no claims to suitability for any particular application. The PCB is 27.3 x 47.5mm (about 1 x 1.9"). The PCB design has been uploaded to PCBs.io as project 8g30x for those wishing to simply click a purchase of four PCBs at their current price of $8.11, including worldwide free shipping. Just to be clear — that is 4 boards and free shipping at that price, using the link above. I have no business connection with PCBs.io, except as a customer, and this is only to make access for a few bare PCBs easier for members wanting them.
For those wishing to make their own, or have them made elsewhere, the zipped Gerber files are here:
And the Bill Of Materials (generic BOM assembly parts list without specific part numbers) is here: As always, comments, suggestions, and posts of how you use it are always welcome! I will post some photos of completed modules when the first batch of boards arrives.