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Re: Wireless keyboard, 4800bps possible?

Marcus,

>Does anyone know if PS/2 or a Twiddler I needs 9600 ?

Try listening to the serial port and click some keys... If it's sending
plain ascii down the line then I'd say there'd be no noticable difference.
It should be pretty obvious what the bandwidth used is like. I suspect there
will be only 1 character (8 bits) per keyclick, giving you (at 4800 baud),
600 characters per second (evenly spaced, say 600 potential character
"slots" per second).

Nick

----- Original Message -----
From: "Marcus" <>
To: <>
Sent: Friday, January 04, 2002 5:42 AM
Subject: Re: Wireless keyboard, 4800bps possible?

>
>
> I have some 4800bps transmiter-receiver -pairs lying around.
> Does anyone know if PS/2 or a Twiddler I needs 9600 ?
> I can hook up the receiver directly to a serial/ps/2 port and would
> not like to have microcontrollers on both ends, just to do
> a bit-rate conversion.
>
>
> Russell Kohn wrote:
>
> > Are you using a full-sized keyboard right now?
> >
> > Some people have made DIY chording keyboards, out of normal keyboards.
> > Could a wireless (RF) keyboard be made into a chording keyboard, without
> > losing the wireless capability??
> > Mouse may be harder, but for me, mouse is non-critical.
> >
> > On Wed, 2 Jan 2002  wrote:
> >
> > :This is exactly the type of situation I am trying to work on/with. I am
> > :forced to carry a bag around with me almost all of the time. In this
bag, I
> > :can carry whatever I need to, be it the board, it's enclosure,
batteries, and
> > :transmitters. At the moment I have it set up so that the 5822 is
running in
> > :the bag in a large, roughly made aluminum enclosure, and hooked up with
> > :banana plugs to an old Dell laptop battery. Then, the keyboard and
mouse are
> > :hooked up to a wireless keyboard transmitter (RF), and the tv-out is
hooked
> > :up to a wireless transmitter, which is hooked up to the tv. What I
really
> > :would like to do is get the transmitter to transmit to to my
semi-hacked
> > :glasstrons, with a small receiver format. However, I have found that in
most
> > :wireless ntsc transmitters, the receiver is the bulkier of the two
> > :components. Any ideas?
> > :
> > :Also, I'd love a wireless twiddler II, but don't have the ability to
come up
> > :with anything myself. Any progress? Ideas?
> > :
> > :These only obstacles remaining are finishing the glasstron, small
wireless
> > :NTSC receiver (low power), and wireless input device that is workable.
Both
> > :wireless components would be short range (I am always within ten feet
of my
> > :bag).
> > :
> > :~patrick
> > :
> > :In a message dated 1/2/2002 7:04:16 PM Eastern Standard Time,
> > : writes:
> > :
> > :
> > :> I carry a bag with me, basically 24/7, so leaving a computer and
batteries
> > :> in the bag would make a lot of sense. But I wouldn't want to have
cables
> > :> between me and the bag. That would look odd: Sitting at a desk with a
> > :> cable to my head, and hand from a bag sitting on the floor. So much
for
> > :> covert! but if, instead, I had wires from my head and hand to my
pocket,
> > :> through my shirt, well, thats much better!
> > :>
> > :
> > :
> >
> > --
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> >
> >
>
>
>
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