[Arm-netbook] Building your own keyboard

[Christian Kellermann]

http://git.rhombus-tech.net/?p=eoma-firmware.git;a=summary

Looking through the git repo I have seen that in the flying-squirrel
directory's README the http://code.google.com/p/stm32sprog/ is
mentioned. Maybe that should be mirrored to a safer place?

[Christopher Havel]

One more thing first. You concretely cannot do USB HID stuff on a
'328-based board. You'd have to flash the serial-to-USB chip with a
different USBID (high level stuff, that) which would necessarily then cause
it to stop ID'ing as an Arduino... see, the USB comms on those boards is
handled by that separate chip... the '328 can't USB on its own, so it sends
and receives TTL serial from a second (translator/bridge) chip. There's a
software thing called VUSB that can sort of get around that in a nasty way,
but it's really ugly last I heard, and therefore not quite suitable for
this.

For the record, the eBay clones almost universally feature a CH340G from
Jiangsu Qinheng Co (aka WCH) as their serial-to-USB translator. More
official Arduinos usually use FTDI-branded chips or (in some cases) a
second ATMega, an 8u2 or 16u2. Only the Leonardo and compatible
(32u4-based) Arduinos can be used for USB HID gear, because they neither
need nor have that second translator chip -- it's direct
microcontroller-to-USB, because the 32u4 has an on-die USB controller.

The '328 ones are Pro Minis, although eBay does tend to make a mess of

the

labeling... both Pro Mini and Pro Micro designs are originally SparkFun
Electronics in-house designs. Great company, but I wish they hadn't done
those. I like the Arduino Nano (328) and original Micro (32u4) far better
than the Pro versions. You may have noticed! ;)
As an aside, the Micro and Pro Micro are really just shrink-ray'd

Leonardo

boards. Whoo.

Thanks for that clarification!
Let's resume the usual 3D printing / laptop / EOMA discussion :)
--
May you be peaceful, may you live in safety, may you be free from
suffering, and may you live with ease.
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[Luke Kenneth Casson Leighton]

On Fri, May 26, 2017 at 10:17 PM, Christian Kellermann

Post by Christian Kellermann
Looking through the git repo I have seen that in the flying-squirrel
directory's README the http://code.google.com/p/stm32sprog/ is
mentioned. Maybe that should be mirrored to a safer place?

quick google search, looks like lots of people already have

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[Bill Kontos]

I'm not familiar with percentages being used to describe keyboards. Can you
explain?

100%= full 104 keyboard
TenKeyLess(TKL)= the full 104 without the numpad
60%= TKL without the modifiers on the right side and the arrow keys.
Modifiers will be used by hitting other combos etc.
40% Even smaller. No idea how people type on these.
Additionally there are other even more weird keyboard like the minivan, the
ergodox or the Plank if you are really into them.
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[Christopher Havel]

I *think* the ones I prefer are therefore TKL in that nomenclature... I
usually just call them "mini" or "compact". The ones that advertise as
having an "embedded numpad" which I never ever use or need.

See --> Adesso or SolidTek ACK-595, pretty much my ideal keyboard.
PgUp/PgDn/Home/End on the right edge, up against the cursor (arrow) keys,
with the rest of the usual modifiers (etc) in weird places because that's
where they fit. The one in front of me right now (part of a homemade laptop
that is the inspiration for my previously-and-briefly-mentioned AnyTop
project) has only one Ctrl key, the tilde is between left Alt and spacebar,
Ins and Del are between the context menu key and the cursor keys. PrtSc,
Scroll Lock (what does that even do?) and Pause are up in the upper-right
corner squashed in after NumLock.

OFF TOPIC RAMBLING RANT because I'll explode if I don't.

I'm writing novels now (yes, plural, one's being edited as I write the
sequel... there's a story as to how that all came about) and that homemade
laptop is my writing box. Of course I corked it with a kernel update last
night (ironically I was trying to get it working *better*), so I've got to
torture it back into working somehow... that's not going very well right
now... see, the system unit is one of those Z3735F based stick computers
(think Intel Compute Stick, but generic... this one's a MeeGoPad T02) and
on Mint the sound, WiFi, and BT don't work by default because the chipsets
are effin' weird. The cherry on the whipped cream on the cake is that this
64bit system has 32bit UEFI because eff everybody (sorry for implied
language, but I'm kinda foaming at the mouth here) so Mint's default
installer goes "WTF IS THIS S***?!?!?!" and dies when it tries to install
the bootloader. Of course that's not the absolute last thing the installer
has to do, so I've got to try and torture it into working or find another
OS, which I don't want to do TBH. Mint is freaking *fast*.

I think I'm going to just set it aside for now. There's an Australian bloke
calls himself Linuxium who's working on a solution... I think I'll let him
work this crap out before I go bald. The downside is that he's taking his
bloody dang time to get it going, and I've writing to do.

Maybe I'll try Ubuntu. I hear it's a little more graceful in how well it
installs on this hardware. Besides, I want to look at that new Budgie
desktop environment, just to see what it's like and to play around with it.

OK I'm done.
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