deskthority

Seriously, though, perhaps you could invest in a side table to separate the desk-y elements from the workbench-y elements, or something like that (meanwhile, I have to fix the cable chaos in my own setup, so who am I to point fingers?).

I've got a better idea: there's a lot of space above those ...

Hey flowerlandfilms, you were supposed to post your desktop. Unfortunately, we can't see a desk in this picture.

Another temporary desktop, using the TV set and wired internet in the hotel room... the kettle and the satellite receiver belong to the hotel.

Here's my temporary set-up at a friend's house. The computer is a NUC (barely visible in the top left corner). Only the 19" monitor isn't mobile (it's a wonderful non-widescreen piece of art).

Thanks mecano. The hardware should be OK because it used to be OK, but, unfortunately, I can't find the source code I used to build the firmware back then, and I wanted to change the layout. Therefore I did it all over again, and now it's misbehaving, I just don't know why.

Thanks pomk, I'll try to figure out how to use it. Is there documentation somewhere?

After doing an extensive search of this and other websites, I can't find any pointers to instructions on how to debug tmk_keyboard-based firmware.

Background: On my hbar alpha, I run tmk_keyboard with suka's modifications (in particular, automatic mouse layer when the trackpoint is moved), and the ...

Those chorded keyboards are for typing an entire word with one chord, not a single character.

I also really want to try to write a keyboard firmware with a Haskell EDSL, since I spend most of my time writing Haskell.
Why is it that some of the brightest and most creative people on DT use the same language as I do? :) I haven't done much hardware work recently either, apart from TMK-ing a ...

Are you trying to redefine the term "mechanical keyboard"?

Good Lord, I must be blind. Sorry for that...

I wonder why I missed this topic so far. While everyone seems to be flattered by your keycaps, I'm more interested in the firmware. Would you mind sharing your Ivory code with us? Just starting out with Ivory, I think I could learn a thing or two from you.

I have a working implementation done with nrf51.
Great, I'm looking forward to it. Which SDK version are you using? I ended up using three separate versions for the three types of chips I have (or will have soon): 11 for 51822aa, 12.3 for 51822ac, and 13.0 for 52832, each being the latest one ...

Hi trebb, I admire your work, and of course that 48s(x) acting as size reference. Have you ever considered making a chorded keyboard for it?

Here's a wake-up call from Nordic: they have announced the nRF52840, which now has USB device functionality on-chip, and can be run off 5V. That plus BLE sounds like my dreams come true.

<delurking after several months of typing without thinking too much about the keyboard></>

Suka, that "BlackFlat" is almost identical to the "alpha" I'm typing on. Only mine has blank keycaps, a lasered stainless/acrylic case, and one more thumb key per side (disabled because they are useless). I ...

..and already soldered one chip 180 degrees of what it should be. Too nervous :(


Don't worry, some flux and a hot-air gun will do the job. I've done it all in the past (soldered a QFP the wrong way, more than once -- after all, your chance of getting it right is one in four unless you think ...

Gosh, that looks good. I'm sure, though, that those capacitive pads aren't the real keys: do you use them as a reference or something?

Some advice concerning the Teensies: I strongly recommend that you releave stress on the USB connector from the cable. After the USB receptacle broke off on my ...

Why ANSI? Unless you need the PCB, ISO gives you more springs, domes, and 1u barrels. Or is it the stabilizers you're after? (Or the crappy keycaps?) I have a butchered ISO Novatouch, so if I finally get my electronics to work, I can send you some of the parts I don't need (all except springs, domes ...

Finally sorted the electronics out: So as soon as I have some time, I can do some SPIS and ADC development work.

Is anyone working on the nRF51 or nRF52 front? I do quite like the SDK they ship (and even have a fairly simple build environment set up), but have no idea how to properly implement BLE's HOGP on it. The controller should be able to pair to multiple devices (so it's easy to move the board between ...

Another capacitor of 0402 size?

Seriously, what have you done to your Novatouch? I destroyed one myself by removing all the Topre key goodness from it, but the electronics is still in good shape, including C15.

Since there is no resistor in the design, the rise time is only affected by the slew rate of the controller output and the bandwidth of the amplifier, which are both in the µs ballpark.

I quickly tried the board again with six switches haphazardly fixed with M2 bolts and nuts (thanks to Sir ...

RichardinFinland wrote: Anyone know what component is C15 on a topre novatouch board? I assume it's a capacitor?

You're lucky that I just butchered my Novatouch a couple of hours ago, so I can actually have a look. Yes, C15 looks very much like a capacitor, 0402 size.

ħ

Let's see some pictures!

First of all, the set-up is quite a mess, as always:
p.jpg
As you can see, I'm testing with a single key only, just to see whether it works at all.

Now the first results, for a single row. Key present but not pressed:
1c.png

Key partially pressed, around actuation ...

The excitation is a rectangle. Since the integrating TIA measures charge, you don't see the spikes typical of the RC circuits you and others (xwhatsit etc.) use. The limited skew rate is probably due to the extra resistor I installed for my tests in an attempt at combatting 50Hz interference. I'll ...

Oh joy, after a number of failures (with corresponding error messages from OpenOCD) and reading a lot of info on the net about how my Bus Blaster can't deal with the nRF51, the test code I wanted to flash miraculously appeared out of nowhere:
s.png

Now let's move to some simpler GPIO logic. (The ...

I promised to myself that I wouldn't post to this thread until I have some more results. So I managed to keep my promise, since brand-new PCBs arrived today from China, and I couldn't but start soldering straight away. Just the controller module for now, which appears fine on the SWD debugger link ...

Reading through the topic, PJE, I miss a description of the layout you're currently using. Would you mind showing us how it works? Also, which hand do you use it with?

I'm asking because I've already built a split keyboard with 18 active keys per side, and I'm in the process of testing bits for a ...

phosphorglow wrote: Here's a bunch of hand soldered silliness:

_MG_6510.jpg

If that doesn't prove that soldering SMD is no harder than THT, nothing does. Good work!