[Coco] Coco Digest, Vol 178, Issue 43

[Brett Gordon]

Does the coco keyboard need diodes?

On Jul 24, 2017 10:17 AM, "camillus gmail" <camillus.b.58 at gmail.com> wrote:

> Hi Dave,
>
> I do know about USB /PS2 keyboards but hey are all rubber dome key
> operated and most of them are Mylar bases, on which you can not solder. Now
> this deal are real sherry blue switches ( unless they lie, I will see that
> soon enough ), so there are many opportunities to make a new keyboard for
> the coco. Or harvesting the keys and make a new pcb, or rewire the existing
> board, and take the layout for granted. This is personal to the extend of
> how close you want to go to the originally layout of the coco ( 1 2 3).
>
> The only problem I still see is to get the right caps with the specific
> layout for the coco, like red break, and some others.
> I need to do some laser experiments.
>
> It would be a nice replacement if I can keep it a project @ $70 a $80(
> this board incl. ).
>
> cb
> On 7/23/2017 11:11:55 AM, Dave Philipsen <dave at davebiz.com> wrote:
> Just FYI, some of the USB keyboards (not all) retain backward
> compatibility with the PS/2 keyboards. All that is required is a simple
> USB->PS/2 adapter and they will work.
>
> Dave
>
>
> > On Jul 23, 2017, at 10:34 AM, Amardeep S Chana wrote:
> >
> > Date: Sat, 22 Jul 2017 21:35:47 -0500
> >> From: "camillus gmail"
> >> To: "Bill via Coco"
> >> Subject: [Coco] keyboards
> >> Message-ID:
> >> Content-Type: text/plain; charset="utf-8"
> >>
> >> Hi all,
> >>
> >> This is a chance in a lifetime, to get a cheap good BLUE CHERRY SWITCH
> >> keyboard.
> >>
> >> Copy & Paste the link and see for yourself.
> >>
> >> I ordered one and will see how hard is is to adapt it to a coco. ( coco3
> >> in my case )
> >>
> >>
> >>
> >> cb
> >>
> >>
> >> https://www.monoprice.com/product?p_id=13785&cl=res&utm_
> >> source=170722_email&utm_medium=email&utm_content=
> >> 13785&utm_campaign=170722_saturday
> >>
> >>
> > Thanks for the heads up, but just a couple of points. The layout is the
> > European style with the backslash to the left of the ENTER key.
> >
> > Also, nowhere does it say Cherry in the ad. Real genuine Cherry made
> > switches are north of $.60 each in quantity so you'll never see a $40
> > keyboard made with them. This is still a pretty good deal, but you're
> > getting a Chinese knockoff mechanical switch and as long as you're aware
> of
> > it, all is well. I have a few like that and they work just fine. Plus I
> > won't cry a tear when they wear out/break.
> >
> > I know they have PS/2 to CoCo keyboard adapters but I haven't seen USB to
> > CoCo keyboard adapters This might be a job for Mr. Raspberry Pi. :-)
> >
> > Amardeep
> >
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>
>
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