LK201 emulation

Warner Losh imp at
Sun May 17 17:15:03 CDT 2020

On Sun, May 17, 2020 at 3:13 PM Paul Koning via cctalk <
cctalk at> wrote:

> Gentlepeople,
> I've been having problems with broken LK201s, so as a workaround I created
> an adapter that connects to a standard PC USB keyboard and makes it look
> like an LK201.  It's based on an Arduino (specifically, Adafruit Trinket
> M0, an amazingly tiny yet powerful small microprocessor).
> It's working at this point, though it needs a few small software tweaks to
> make it complete.  I'm going to turn my breadboard into something slightly
> more polished.

Very cool!

> Question to the list: is this something that would be of interest to
> others?  If yes, I can make the design available.  Perhaps the PCB layout
> and parts list.  I don't think I want to get into building units for
> others, though.

I can't speak for others, but I need, I want, I gotta have.


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