deskthority

Can you post some more pictures?

Sure. Backside of the board:
back.jpg

Quick shots of the stuff on my bench now. I've started using one as an extra keyboard, so I need a new set of two for my board-to-board experiments. That is the purpose of the two footprints on the back to the sides.These ...

I didn't know that it's possible to make transparent PCBs until now. What material is it?

So thanks for that -- you got me wondering too if transparent was possible. It seems that there a couple of boardhouses that do transparent soldermask. All the cheap and cheerfull boardhouses do not seem to ...

And finally, if you're interested in going full low level USB, this blog post has a description of how you can do it, including how to use Microsoft Message Analyszer to analyse USB packets

I recently went through some usb hid debugging on linux and used wireshark together with the usbmon kernel ...

Nice project :) I didn't know that it's possible to make transparent PCBs until now. What material is it?

Ha -- After looking again at the picture I can see how you would think that. nickw has the right of it though, this is FR4 with red soldermask and HASL finish.

Ordinary FR4 pcb does let a ...

https://github.com/dijkstrw/5x5

This is my first custom keyboard, a 5x5 cherry mx matrix based on the STM32F1 with libopencm3. During development I was mostly lurking here (Alternative controller experiments FTW), so it seems fitting to show it to you guys.

The project contains firmware ...

Hi 7bit,

If available I'd like:
1x G80-11900 us layout matrix, black mx blank keycaps
1x 701-2215 - matrix for G80-8100 series - brown keymodules
1x G80-3850LYBGB-2, don't care if pcb works, only interested in the switches
1x 630-0826 G84-4400 trackball

So what do you want me to send to cherrymx ...