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Posted By

Charlemagne
on 2018-04-17
11:45:43
 Does anybody use Keyrah V2 for Plus/4?

Please have a closer look at the following hardware element:



http://amigakit.leamancomputing.com/catalog/product_info.php?products_id=1144


...because of somebody has already created a new age "Commodore 64" with this and a Raspberry Pi3:







What is your opinion about creating a new age C16, VIC20, CP4, Amiga 600 or Amiga 1200?

Posted By

MMS
on 2018-04-17
12:00:01
 Re: Does anybody use Keyrah V2 for Plus/4?

Interesting find.
When you already have a dead Plus/4 or C16 it could be cheaper to build a Pi base equivalent, than buy new TED + new 8501 + PSU :-)
(but kKeyrah is expensive, as far as I remember)

I was not aware that Keyrah is prepared to accept Plus/4 keys (but I think a connector is missing from the board to really work).

Some thoughs:
I did not know, that the Pi3 is so fast. It should fall behind any C2D processor in raw power.

There is a step by step installation guie, and in fact exactly the same VICE should be used as for C64, just emulating a different machine.
And it seems Pi3 has no problem to properly run a C64 emulation:

https://www.youtube.com/watch?v=u2TwHKVYAZk

Maybe due to background windows processes, but by C2D E4400 sometimes has issues in YAPE full window screen to cacth up with 100% Plus/4 emulation. Maybe it is just me, but PIs for me seemed to be little lacking in raw power. Maybe I was just wrong.

VICE is far behind those YAPE and Plus/4, but should work.
Actually I tested few weeks ago VICE, and to my surprise, even some smaller demos run (with almost OKish sound)

Posted By

Charlemagne
on 2018-04-19
05:51:11
 Re: Does anybody use Keyrah V2 for Plus/4?

As you can see the link below the first picture, Keyrah V2 costs about 13 000 Ft (HUF) = 42 EUR (with delivering), so this is not so expensive. ...and its description says after some soldering it enables you to use it for a Commodore Plus/4, too.

I have got a Raspberry Pi2 (bought February 29th, in 2016) and I used it for a many purposes, for example: teaching, YouTube, IP camera, listening to musics, making smart a TV, etc. (I wrote a description about it on my homepage: http://www.charlemagne.hu SYS:Raspberry Pi 2) So a rPI3 has got far enought power for building a new age Commodore computer like the mentioned one who created a C64 (taking apart a working machine) with RetroPie:

https://retropie.org.uk/

...with a lot of emulators!

So I was very curious whether there was anybody who tried it out with a Commodore Plus/4 because the Plus/4 keyboard is much more useful than a C64's... happy

...but ok, well I am going to build one...

Posted By

Patrick
on 2018-04-19
07:11:38
 Re: Does anybody use Keyrah V2 for Plus/4?

I just wanne say that i have somuch respect for all the guys that create new sofware and hardware for the 264 family!

Posted By

MMS
on 2018-04-19
15:04:07
 Re: Does anybody use Keyrah V2 for Plus/4?

100% agree!

Posted By

Charlemagne
on 2018-04-24
05:56:02
 Re: Does anybody use Keyrah V2 for Plus/4?

WoW, WoW and WoW... happy

I have found an important information about all these. A man created a "new" Commodore 116 retro machine with Keyrah (in 2013?). This computer has got the same keyboard interface as a Commodore Plus/4, if I know well.

https://translate.googleusercontent.com/translate_c?depth=2&hl=en&prev=search&rurl=translate.google.com&sl=de&sp=nmt4&u=http://mithotronic.de/c116retromachine.php&xid=17259,15700002,15700022,15700124,15700149,15700168,15700173,15700186,15700201&usg=ALkJrhgYCHPaUCAoCkOttYc2F5uXHWbmQw

I tested all my old computers and I found a wrong C16, two wrong VIC20 and a keyboard (only keyboard) of a CP4.

...so this may be a good start for me...

Posted By

Stinaris
on 2018-04-24
16:49:31
 Re: Does anybody use Keyrah V2 for Plus/4?

I have a keyrah in my C128 but I used 2 x Arduino Leonardos (£2.50 from China each) which can send HID keyboard signals to the Raspberry Pi running vice. I use one to convert the keyboard signals and the other to convert the joystick (there are enough spare lines to do 2 joysticks)

I had this running in my Vic20 sadly through shear stupidity I managed to lose it and haven't got round to fixing it yet.
I have done something similar for the Atari 2600 Synth Cart (not quite finished as I've been working on GridIron).
I also managed to squeeze it into an Atari 2600 Jr running Stella.

The trickiest bit is getting the keyboard matrix to work, it did take some debugging!!!! Hence why, once lost, I haven't recreated it.

Posted By

Hypex
on 2018-04-26
11:07:40
 Re: Does anybody use Keyrah V2 for Plus/4?

Could be an option for the FPGATED stand alone. Unless that had a keyboard input. Then we'd need the new Plus/4 case kickstarter.

However, given there would already be dead ones with a working case, perhaps not. Or, in that case, dead board case holder kickstarter. grin

Posted By

MMS
on 2018-04-26
16:55:09
 Re: Does anybody use Keyrah V2 for Plus/4?

By accident I found this one. Similar to Keyrah, but uses a different approach, and has fixed keyboard layout, certainly USB too. So it is less flexible, on the other hand seems a little easier to start using it.

Plus/4 and C116 version
http://blog.tynemouthsoftware.co.uk/2015/12/day-14-commodore-plus4-usb-keyboard-kit.html

C16 version
http://blog.tynemouthsoftware.co.uk/2016/05/commodore-usb-keyboard-kits.html

Posted By

Charlemagne
on 2018-04-27
04:58:26
 Re: Does anybody use Keyrah V2 for Plus/4?

Hi Stinaris,

Your plan about 2x£2.50 Chinese-design is very interesting, and the GridIron game idea is very cool, too.

Hi Hypex,

Your English is a little bit complex for me, but maybe I understand what you want to say... happy

Hi MMS,

Your randomly found stuff is amazing. One of my friend (my ex-pupil) and me were chating about how to create a new age computer for 20 minutes by phone. And he said me that I was stupid if I bought a Keyrah, because he could plan a PCB (what I imagined) costed 2 000 Ft (~6EUR). I was very surprised at it, but saying OK... Well I am going to show these links to him.

Thanks!

Posted By

siz
on 2018-04-27
14:31:34
 Re: Does anybody use Keyrah V2 for Plus/4?

Charlemagne: here is the Hungarian translation of Hypex's post:

"Ez (a Keyrah - Siz) lehetne egy lehetőség a standalone FPGATED-hez. Kivéve, ha annak van/lesz billentyűzet bemenete. És akkor kellene egy Kickstarter kampány új plus/4 házra. (Ahogyan volt A1200-hoz és van A500-hoz is - Siz)

Igazából, mivel van egy csomó halott (plus/4 - Siz) "működő" házzal, talán mégse. Vagy, ebben az esetben egy döglött nyáktartó Kickstarter. (Feltételezem, hogy itt igazából arra gondolt, hogy ahogyan az A1200 házba is lehet RPi-t tenni, úgy lehetne FPGATED tartót tervezni a gyári plus/4 házba. - Siz).

Posted By

Charlemagne
on 2018-04-29
06:24:28
 Re: Does anybody use Keyrah V2 for Plus/4?

Hi siz,

Thank you for the Hungarian translation, I was also able to translate it word-for-word (like you), but I didn't understand, because of it seems to be hotchpotch OR I may be a fool in the topic... happy

On the other hand, I saw he was an Australian and his accent reminded me of DJ John from the Britain's Got Talent 2015...



...who wasn't be comprehended by Simon (head of jury) neither and called one member of stuff to interpret DJ John's words... happy

By the way, MMS! What do you think you can compose a simple tam-tam music on TED as performed by DJ John??? happy
(in spite of it is not so classical like JS Bach happy, but cool!)



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