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Show HN: Threeboard – a full-size mechanical USB keyboard with only three keys

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Re: Show HN: Threeboard – a full-size mechanical USB keyboard with only three keys

#3
post #2

Cool! Can you recommend any reading resources for getting into hardware design?

SparkFun have some pretty good tutorials and resources for learning, e.g. this tutorial which guides you through using KiCad, a tool for designing schematics and PCBs: https://learn.sparkfun.com/tutorials/beginners-guide-to-kica....

Re: Show HN: Threeboard – a full-size mechanical USB keyboard with only three keys

#6

It seems the A key takes the brunt of the typing, did that factor into your design?

Yes the A key is the most frequently used, as it increments the USB keycode in all layers. An alternative would be a mode that allows setting individual bits in the keycode byte, but that's still quite arduous.

Re: Show HN: Threeboard – a full-size mechanical USB keyboard with only three keys

#8
post #5

But, is it clicky enough? ;)

Put whatever switches you want on it and it can be!

On a more serious note, that’s a really cool project!

As it happens, I spent quite a bit of time last night learning about the qmk firmware and was looking around for a “keyboard development board”…

Do you think that you’d aim to grow the firmware to support bigger boards?

Re: Show HN: Threeboard – a full-size mechanical USB keyboard with only three keys

#9
post #8

Earlier quoted context omitted.

Put whatever switches you want on it and it can be!

On a more serious note, that’s a really cool project! As it happens, I spent quite a bit of time last night learning about the qmk firmware and was looking around for a “keyboard development board”… Do you think that you’d aim to grow the firmware to support bigger boards?

For me personally, no. But I think the threeboard firmware is small enough right now that it's very readable and understandable, so it could make a good starting point to fork and adapt to different boards!

Re: Show HN: Threeboard – a full-size mechanical USB keyboard with only three keys

#10
I love small keyboards, but with only 3 keys, you may as well just send ASCII codes. Nitpick aside, this does appear to be a quality project. :) A design document, user manual, and graphical simulator are lacking in many other niche keyboard projects.
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