Keyboard from where

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Ruptor
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Re: Keyboard from where

Postby Ruptor » Wed May 18, 2022 3:56 pm

Do I need the CTRL key if I have separate backspace & breaks or is it used for other software that might be loaded? :?


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tofro
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Re: Keyboard from where

Postby tofro » Wed May 18, 2022 5:46 pm

Ruptor wrote:Do I need the CTRL key if I have separate backspace & breaks or is it used for other software that might be loaded? :?


Yes, you do. You will need it for <CTRL>-C to switch between jobs and lots of the accented and symbol characters from the character set.


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ones' complement
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Re: Keyboard from where

Postby ones' complement » Wed May 18, 2022 6:30 pm

If push came to shove, you could reassign SV.CQCH ($28092) :o

i.e. to change CTRL+C to ALT+C

POKE_W 163986,25599

to revert to default CTRL+C

POKE_W 163986,3

:)
Last edited by ones' complement on Wed May 18, 2022 10:14 pm, edited 1 time in total.


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Ruptor
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Re: Keyboard from where

Postby Ruptor » Wed May 18, 2022 8:00 pm

OK thanks guys. I could add another 60 keys to cover every combination but I think I will leave it as is. :lol:


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Ruptor
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Re: Keyboard from where

Postby Ruptor » Tue May 31, 2022 7:37 pm

The hacking job became a bit complex so I have the hacked bits but now have to put them back together and I shelved it for now.I had a brain wave and a free day for a replacement membrane that isn't and here is the PCB layout. I wonder if you recognise it. It requires checking and it might be tricky to build but it only requires manual labour no thought. :)
Attachments
QLKeys.jpg


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Ruptor
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Re: Keyboard from where

Postby Ruptor » Wed Jun 01, 2022 11:56 pm

Does the membrane keyboard require debounce because I could add a 1mS RC or something to the PCB if the software reading of the lines in the QL is rubbish?


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vanpeebles
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Re: Keyboard from where

Postby vanpeebles » Thu Jun 02, 2022 9:50 am

Zer0_lag
BOT
— Today at 09:42
I've been banned on qlforum.co.uk, but have a message for Ruptor that was trying to rework mechanical keyboard for QL...
look at https://www.qlforum.co.uk/viewtopic.php?f=2&t=3972
QL-Bot
BOT
— Today at 09:42
Command sent by Zer0_lag
... so if anyone could contatct ihi and pass the info, that'd be great...
Andrew13 — Today at 09:43
You've been banned on qlforum.co.uk???? Why??
Zer0_lag
BOT
— Today at 09:43
THat keayboard is of INSANE quality. Keys are explosion proof -on HALL effect.
Each key has 3 pins. Cenral one is Vcc(5V), bottom one is input, top is output.
So all he has to do is to dremel existing connections on the PCB to pins 1 and 3, check that all the 2 pins are connected...
cut the PCB to contain just the key matrix ( or desolder pretty much everything else.
QL-Bot
BOT
— Today at 09:46
Command sent by Zer0_lag
... reshuffle keys as desired within top steel mesh...
vanpeebles — Today at 09:46
ok, anything else? i can post that
Zer0_lag
BOT
— Today at 09:47
and use thin lacque wire ( from old transformer etc) to connect pin inputs and outputs into a matrix...

Post via the discord, hopefully it helps! :)


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Ruptor
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Re: Keyboard from where

Postby Ruptor » Thu Jun 02, 2022 11:05 am

vanpeebles wrote:Zer0_lag BOT
THat keayboard is of INSANE quality. Keys are explosion proof -on HALL effect.
Each key has 3 pins. Cenral one is Vcc(5V), bottom one is input, top is output.
So all he has to do is to dremel existing connections on the PCB to pins 1 and 3, check that all the 2 pins are connected...
cut the PCB to contain just the key matrix ( or desolder pretty much everything else.
... reshuffle keys as desired within top steel mesh...
and use thin lacque wire ( from old transformer etc) to connect pin inputs and outputs into a matrix...
Post via the discord, hopefully it helps! :)
Not sure who has been banned or why. It must have been something really evil with warnings and upset everybody on the forum for such drastic action. :| Thanks for the Hall effect Pinouts that I wasn't sure about how to connect to the QL. I found confusing pull down resistors on the 6 matrix lines perhaps to help the 8049 processor to read a good low signal. Ideally I wanted to put the Hall effect keyboards in the QL but many reasons prevent that so I have shelved it for now and done the above PCB so I can keep the original look and fit a PCB where the membrane sits. Well that is the plan and the system is tweakable like bridge tuning a guitar so it should work in the end.


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NormanDunbar
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Re: Keyboard from where

Postby NormanDunbar » Thu Jun 02, 2022 12:45 pm

Slightly OT:

ruptor wrote:Not sure who has been banned or why.


Only 3 people have been banned. The most recent, on the weekend that Sir Clive passed away, was the user formerly known as "Brane_2" who was a bit of a hardware type. Apparently his hardware skills were/are lacking. (Not my observation, I'm definitely not hardware!). Given this is a hardware thread, this Zero_lag person could be him.

Cheers,
Norm.


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Re: Keyboard from where

Postby Nasta » Fri Jun 03, 2022 8:25 pm

Deleted duplicate post
Last edited by Nasta on Sun Jun 05, 2022 8:56 pm, edited 1 time in total.



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