deskthority

Thank you, orihalcon! It's just ingenius! I've never ever dreamed of such a simple solution ;)
I'll try my plan first just because it's much cheaper (and I've already ordered the programmed controller). But if it doesn't work, I'll definitely follow your recommendation!
I've got just one question ...

Thank you very much for suggestions!
I have already found a guy who dumped the ROM seven years ago. He just sent me the binary. It turns out that there is absolutely no difference between two ;)
Also, I've found a store in Moscow which does not just sale chips, but also have a service of programming ...

It turned out that Intel 8048 is a factory flashed chip. Good news: there is Intel 8748, the same chip, but rewritable. Also, as far as I've found, there is no write protection exists in this chip family.
So, the plan is:
To desolder and check the capacitors.
To find the firmware of 8048 dumped by ...

Hey ;)
No intermittent typing whatsoever. It just died completely.
What do you mean by disassembling? To part the plate from PCB, put off keycaps and pull all flippers out? How come it could be of any help?
I already put off the back lid, unplugged the internal cable connector, and plugged it back ...

Thank you very much.
So, the biggest chip is Intel 8048 controller. Is it flashable? Or if it's a culprit, and I change it, will it work right away?

Hello guys,
I've got the same issue.
All of a sudden, my F XT refused to work. (Soarer's converter on a Pro Micro clone.) Right before the failure it started to type itself some garbage, I've plugged the USB off, and then on again. And enjoyed the silence.
I've flashed another Pro Micro and tried it ...

Thank you very much for the tutorial!
I've managed to get my IBM model F XT working. And it does like a charm ;)
I've done it under Windows 7 x64. So, I'd like to tell about one issue I've faced with.
Windows didn't recognize the device, of course, then I installed drivers manually, as SparkFun ...

Have you tried to isolate the D6 pin from the rest of the scheme and take a look how everything will go in that case? Because I was told that using the LED pin could lead to instablility in the work of Teensy.

Nuum wrote: After desoldering the Teensy from the keyboard flashing with scaswr.bat works, but still only every third or so time. Odd.

Faulty Teensy, maybe?

Hello friends,

I'm working on a project to PCize the keyboard of my childhood — the old Soviet Izot Magnetic Reed Switch terminal monster. The one I was luckily found is not exactly the same, but the switches are the good old ones though. It was always been my dream, and several years ago I've ...

OK, I'm going to use the TMK firmware, and will take further investigation about the potential level need to drive LEDs.

But, looking at the Ergodox, which utilizes the TMK code too, the LEDs' cathodes have to be connected to the ground, and anodes — to the corresponding Teensy pins (through ...

Scarpia, thanks for your detailed answer!

So, if I've got it right, I'm only need to wire GND pins for LEDs, and leave the '+5V' pins floating (or vice versa)?

Hello friends,

I'm trying to create the DIY-keyboard PCB.

I've decided to drive my keyboard by Teensy 2.0++. Summary it will be 26 lines: 19 for the matrix (10 rows, 9 columns) and 7 for LEDs.

So, the question is: what to do with the power pins of the Teensy ("+5v", "GND")?

I've took a look at a ...

7bot may be a bot, but he's not completely automated. He seems to require a lot of human intervention to "work".

That is not how you worship the almighty 7bot...

the proper invocation is is 'klaatu barada nikto"

"Barada nikto" means "beard nobody" in Russian ;)

Excuse me, 7bit, but I'd like to ask again. Please, please, be more responsive this time
What is about #0155 with its fancy-shmancy delivery?
Can I hope to receive it until Christmas?
Thank you in advance for the answer!

That Soviet keyboard has been discussed a few times and the general consensus is that they are Fujitsu Reed switches.

Oh I did not know that. But we don't really know about the switches right?

I forgot that I actually happened upon the manufacturer awhile back. It's a Pravetz. It was reviewed ...

7bit wrote: These orders where packed today:
0000
0001

Excuse me so much, but what is about #0155? I'm worried a bit

What a sweet idea!

Hello,

I've faced the same trouble: each of 3 buttons from the same column produced a character sequences when pressed.

I've taken a look at the PCB back side and found one tiny unexpected bridge between neighboring LED and diode cathodes. Cleaning out that bridge solved this problem.

argcargv wrote: Please please please let production finish before I move again in a year.

Besides finishing production there are such things as sorting & shipping, which would take a lot of time as well

Dear 7bit, are you going to create some ErgoDoxian HoneyB kits? (BTW, it would be perfect to see legended ErgoDox keycaps)

Melissa has kindly answered my request on the production status:

The SA Round 5 Group buy is currently in production - we estimate the
completion of production to be around the end of August.

Melissa Petersen
Signature Plastics LLC

HOORAY!

Dear 7bit.

Could you please clarify the current production status of this GB?

Thank you in advance for the answer.

Murium, Findecanor, thank you for the useful info about sides!

AFAIK, all of Cherry's own keyboards with PCB-mounted MX-switches are single-sided but most of them are actually manufactured double-sided with the top-facing side as a single ESD/ground plane connected to the wire's shield. If there ...

teensy 2++ or teensy 3.x ?

Also: remember to skip the Teensy's built in LED pin. It's no good as an input, without hacking the hardware.

As a general rule, the matrix with the least number of (rows+columns) would be as square as possible. The smallest square that would fit 105 switches is 10 ...

Hello guys,

I've got a schematic question, if you don't mind.

I'm trying to create my first keyboard, and following the ne0phyte's link list (thank you so much for collecting everything useful in one place!).

So far I've finished the switch/diode matrix in the eeschema — I've got 6 rows and 22 ...

Boxx wrote:УВБ76

You know the Buzzer wow

Dear Mr. Joker,

You've got a perfect sense of humor, thank you for all the jokes.

Although, not all of us could understand and/or accept them, I'm afraid.

Thank you in advance for understanding.

It could include the rest of leftovers, for example.

Excuse me, 7bit, I would like to ask you to take a quick look and to send me the new invoice, please! Thank you