Search found 515 matches

by vvp
07 Mar 2020, 19:34
Forum: Keyboards
Topic: Variable weighting, potentially analog switch interest check
Replies: 10
Views: 617

Re: Variable weighting, potentially analog switch interest check

@kelvinhall05: Give it a try if you are going to enjoy the project. Just do not assume some kind of market for it. It is not about the price of magnets. You almost for sure can make it with springs, coils and iron cores only. It is more about how complicated the electronics and the firmware will be....
by vvp
07 Mar 2020, 10:50
Forum: Keyboards
Topic: Variable weighting, potentially analog switch interest check
Replies: 10
Views: 617

Re: Variable weighting, potentially analog switch interest check

Why latency? Lets assume that the key press time takes 10 ms. That is very on the quick side of typing. A standard 8 kHz PWM control loop will do easily. You will need at most 2 ADCs channels per key. It may be doable with one ADC per key. I'm not sure. The bigger problem will be probably the number...
by vvp
06 Mar 2020, 13:38
Forum: Keyboards
Topic: Question about 3D printed case
Replies: 10
Views: 468

Re: Question about 3D printed case

Recommendations in the order of importance: set the printer z-height and the first layer thickness better to minimize the problem while still having good bed adhesion chamfer the bottom of the model before printing it use an utility knife to cut/scrap the rim off (this is typically not needed if you...
by vvp
03 Mar 2020, 13:49
Forum: Keyboards
Topic: Variable weighting, potentially analog switch interest check
Replies: 10
Views: 617

Re: Variable weighting, potentially analog switch interest check

I have previously spent an idle moment speculating as to whether a pneumatic 'spring' could be used in keyboard switches. No, it would be too expensive. You would need precise components and good seals to avoid air leaking. And even with them you would need to add pressure from time to time. Moreov...
by vvp
10 Jan 2020, 22:42
Forum: Keyboards
Topic: Cherry Viola switch
Replies: 22
Views: 1654

Cherry Viola switch

OK, I do not care that much about switches. I think the overall keyboard shape and the layout are more important but some people do care about switches a lot and this may be interesting to them:
https://www.tomshardware.com/news/cherr ... ard-budget
by vvp
14 Dec 2019, 19:56
Forum: Workshop
Topic: Keyboards, Plastic, and Static Electricity
Replies: 6
Views: 417

Re: Keyboards, Plastic, and Static Electricity

Interesting. Application notes I read recommended to place EMI and ESD protection (diodes and low pass filters) as close to the source as possible (i.e. near the edge of PCB where signal enters). Only power distribution network requires also decoupling capacitors and those should be as near to the M...
by vvp
11 Dec 2019, 21:32
Forum: Workshop
Topic: Keyboards, Plastic, and Static Electricity
Replies: 6
Views: 417

Re: Keyboards, Plastic, and Static Electricity

Almost all electronic parts have EDS protection built in up to 2 kV at least. Human body model. I doubt you need more.
As for as ussage: do not touch the metal parts of the keyboard USB connector when you suspect you may be charged. Touch a ground wire of your electrical outlet first.
by vvp
08 Dec 2019, 01:59
Forum: Keyboards
Topic: Keyboard Review Template: Introducing the KeebScore™
Replies: 19
Views: 1003

Re: Keyboard Review Template: Introducing the KeebScore™

Actually, 10 points for switches and 10 points for a layout have some value. Keycaps have some value as well ... probably not full 10 points ... but still ...
by vvp
05 Dec 2019, 11:20
Forum: Keyboards
Topic: Keyboard Review Template: Introducing the KeebScore™
Replies: 19
Views: 1003

Re: Keyboard Review Template: Introducing the KeebScore™

Unsplit: -1000 Horizontally staggered: -1000 Flat: -10 No thumb keys: -50 MX mount: -100 Less than 2mm travel: -500 +1 Ergonomics is completely missing for the KeebScore. It is a score which needs to be introduced so that we can somehow differentiate keyboards which are already almost the same anyw...
by vvp
27 Nov 2019, 21:47
Forum: Keyboards
Topic: Keyboard Firmwares: a survey of controllers and converters
Replies: 15
Views: 859

Re: Keyboard Firmwares: a survey of controllers and converters

Which firmware to use? Chris' firmware: https://github.com/chrisandreae/keyboard-firmware or my branch of it: https://github.com/hercek/keyboard-firmware Features: Almost no community. Chris did respond to my questions when I had any. I can respond to questions about my branch. Uses LUFA or vusb (s...
by vvp
23 Nov 2019, 22:16
Forum: Workshop
Topic: Keyboard Photogrammetry
Replies: 67
Views: 3503

Re: Keyboard Photogrammetry

Interesting.
How many photos were used for one scan?
by vvp
08 Sep 2019, 18:37
Forum: Keyboards
Topic: VAT and Customs; shipping a keyboard ti USA
Replies: 13
Views: 1918

Re: VAT and Customs; shipping a keyboard ti USA

An European company must ship it to you without VAT. You will pay price without VAT at the time of ordering. If here are any import duties for keyboards in USA then you will be paying them when the keyboard arrives to USA. There is no VAT in USA so you will not pay any VAT but import duties may be a...
by vvp
03 Sep 2019, 11:44
Forum: Workshop
Topic: My first handwired keyboard ever!!!
Replies: 12
Views: 3305

Re: My first handwired keyboard ever!!!

If you send only one pulse to a piezo-buzzer then it sounds a bit like a click. It is rather silent though.
by vvp
25 Aug 2019, 20:51
Forum: Workshop
Topic: Ground problems with handwired boards?
Replies: 12
Views: 1297

Re: Ground problems with handwired boards?

So, my pc chassis should be connected to earth through the 3 pin plug. Yes, that is protection by grounding. It is required by law ... probably in about every country. Should I expect the exterior of the usb ports (== the shielding ground, as I understand it) to have continuity with the chassis? Ye...
by vvp
25 Aug 2019, 10:10
Forum: Workshop
Topic: Ground problems with handwired boards?
Replies: 12
Views: 1297

Re: Ground problems with handwired boards?

In other words: if your keyboard requires a shielding ground to be connected to anything then you are likely having some other problem which this connection somehow mitigates. An example is a poor connection on the signal ground.
by vvp
25 Aug 2019, 10:08
Forum: Workshop
Topic: Ground problems with handwired boards?
Replies: 12
Views: 1297

Re: Ground problems with handwired boards?

There are two grounds on an USB connector: Signal ground. This must be connected to the MCU ground . Shielding ground - this should be connected to the shielding of your keyboard case if it has any shielding at all. Most cases do not have any shielding (e.g. because they are plastic). In such case, ...
by vvp
15 Jul 2019, 10:10
Forum: Workshop
Topic: PSA: Soarer's "Simple Logic Analyzer" exists and it's awesome
Replies: 7
Views: 1449

Re: PSA: Soarer's "Simple Logic Analyzer" exists and it's awesome

Well, maybe people do not use it because there are more comfortable alternatives and even cheaper ones (definitely when you want to make it from $20 teensy). But you can go with ProMicro for $4 and a bit of soldering, firmware burning and rather awkward waveform extraction. Or you can buy $6 Saleae ...
by vvp
12 Jul 2019, 10:17
Forum: Workshop
Topic: Low profile Beamspring project
Replies: 34
Views: 4939

Re: Low profile Beamspring project

FreeCAD is quite usable. Considerably slower than commercial alternatives though. By slower I mean that there is still too much manual work which could be done automatically by the program (e.g. it does not guess the right constrains when drawing sketches). Also the OpenCascade (on which FreeCAD is ...
by vvp
04 Jun 2019, 11:06
Forum: Keyboards
Topic: Send language layout from USB HID keyboard
Replies: 9
Views: 828

Re: Send language layout from USB HID keyboard

...different layouts that you want on different layers... The problem is that language-layout is interpreted by the host, not the keyboard. That is only a problem if one cannot get a generic super set of all layouts working. Like Compose key or unicode hex input. Then you can issue any key using th...
by vvp
01 Jun 2019, 20:41
Forum: Keyboards
Topic: Send language layout from USB HID keyboard
Replies: 9
Views: 828

Re: Send language layout from USB HID keyboard

Not without a a custom driver. You can write some macro which will do it for you or an application which will switch the layout after some special input (e.g. on F13). And you can use something like Compose key or Unicode hex input to simulate changing layouts. Compose key support is native in linux...
by vvp
26 May 2019, 23:59
Forum: Workshop
Topic: Adding a beeper/buzzer to a Teensy/TMK
Replies: 5
Views: 623

Re: Adding a beeper/buzzer to a Teensy/TMK

You did not say which Teensy it is. Different versions have different MCUs. Anyway I drive a piezo buzzer directly from an MCU pin and it works ok. I'm still using only about 1/3 of the pin current capacity. Compute the maximum current your buzzer will need and if you are bellow the pin current rati...
by vvp
15 May 2019, 22:57
Forum: Keyboards
Topic: Post a picture of your ideal keyboard layout!
Replies: 466
Views: 47968

Re: Post a picture of your ideal keyboard layout!

Splitting space bar is a move in the right direction!
by vvp
25 Apr 2019, 16:04
Forum: Keyboards
Topic: The best modern gaming keyboard! (and why)
Replies: 15
Views: 1318

Re: The best modern gaming keyboard! (and why)

@Findecanor: Fair enough. The conformability limitation would not matter much for me but it may matter for others. To tell the truth it is definitely not a keyboard for me . Not because of conformability (despite my keyboard being on the fly configurable without a host application) but because it is...
by vvp
24 Apr 2019, 20:17
Forum: Keyboards
Topic: The best modern gaming keyboard! (and why)
Replies: 15
Views: 1318

Re: The best modern gaming keyboard! (and why)

The keyboard works with all operating systems, but every configurable option has to be changed in the "Wootility" program. Nothing is configurable on the keyboard itself. The program is for Windows, macOS and Linux but 64-bit x86 only. If the configuration is saved into the keyboard and the keyboar...
by vvp
24 Apr 2019, 15:23
Forum: Keyboards
Topic: The best modern gaming keyboard! (and why)
Replies: 15
Views: 1318

Re: The best modern gaming keyboard! (and why)

Sangdrax wrote:
23 Apr 2019, 23:07
I just wish they made these in a full case instead of floating switches and had integrated stuff loaded in the keyboard instead of having an external program running.
Does not not work without special drivers?
Does it work on mac or linux?
by vvp
23 Apr 2019, 12:19
Forum: Keyboards
Topic: The best modern gaming keyboard! (and why)
Replies: 15
Views: 1318

Re: The best modern gaming keyboard! (and why)

Nice.
Well, we still need a programmable force curve to get an ultimate keyboard switch :)
by vvp
06 Apr 2019, 11:01
Forum: Workshop
Topic: OSH Park - Flex PCBs for Dactyl / Manuform / etc
Replies: 1
Views: 396

Re: OSH Park - Flex PCBs for Dactyl / Manuform / etc

It is very likely you cannot do this for Manuform without redesigning the keywell or making the case bigger. Notice that you need one row of keys almost in plane to fan-out flexible PCB columns from. You either need such a row of keys or you need a bigger case to place the row of PCB connections out...
by vvp
04 Apr 2019, 22:11
Forum: Keyboards
Topic: ISO users
Replies: 65
Views: 4564

Re: ISO users

spongebob1981: I thought you meant it for every keyboard, not only for enthusiasts' keycap sets. But there is not much difference in reasoning except the price. It costs about a buck when a part of a keybaord and from 15 up when sold separately. And the lower price range will not have any non-US leg...
by vvp
03 Apr 2019, 16:00
Forum: Keyboards
Topic: ISO users
Replies: 65
Views: 4564

Re: ISO users

spongebob1981: That it never going to happen. Production keycap prices are in cents and you want increase that price few times. And what about environmental aspect of this. Most keyboard users would be throwing away a lot of keycaps they do not use. It is not only eñes, çedillas, carons, ... It is a...

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