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wireless keyboard

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  wireless keyboard ebenZEROONE@verizon.net (Hactar) - 2015-02-19 19:44 -0500
    Re: wireless keyboard Henrik Carlqvist <Henrik.Carlqvist@deadspam.com> - 2015-02-20 06:40 +0000
      Re: wireless keyboard scott@alfter.diespammersdie.us (Scott Alfter) - 2015-02-20 15:46 +0000
        Re: wireless keyboard ebenZEROONE@verizon.net (Hactar) - 2015-02-20 17:53 -0500
      Re: wireless keyboard ebenZEROONE@verizon.net (Hactar) - 2015-02-20 10:25 -0500

#2735 — wireless keyboard

So here's what I have:

            +----+
            | TV |
            +----+
               |
           +--------+
           | switch |
           +--------+
            |      |
+--------------+ +-----------+
| Raspberry Pi | | Windows 7 |
|  (OpenELEC)  | |           |
+--------------+ +-----------+

The two machines are in the same room about a meter apart.  There is a
wireless keyboard, Logitech K320, whose USB receiver is currently hooked
up to the RPi.  I want to get a second receiver and hook it up to the W7
box and do _something_ to the keyboard to tell it which receiver to use.
Logitech tech support tells me this isn't possible; their "easy" solution
is to unplug the receiver from one machine and plug it into the other
each time I want to switch[1].  That's not a feasible solution[2].  Is
there one?  If not, is there another wireless keyboard that _does_ do
this, or would I need two keyboards?  No, I don't need a mouse.

[1] The software "Solaar" http://pwr.github.io/Solaar/ appears to be
    for the opposite case, where you have several keyboards within RF
    range and you only want to use one.

[2] My criteria for feasibility are basically "I can do it from across the 
    room" and "it doesn't involve removing the batteries".

-- 
-eben    QebWenE01R@vTerYizUonI.nOetP    ebmanda.redirectme.net:81
LIBRA:  A big promotion is just around the corner for someone
much more talented than you.  Laughter is the very best medicine,
remember that when your appendix bursts next week.  -- Weird Al

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#2737

On Thu, 19 Feb 2015 19:44:39 -0500, Hactar wrote:
>             +----+
>             | TV |
>             +----+
>                |
>            +--------+
>            | switch |
>            +--------+
>             |      |
> +--------------+ +-----------+
> | Raspberry Pi | | Windows 7 |
> |  (OpenELEC)  | |           |
> +--------------+ +-----------+

Is that switch a KVM switch?
 
> I want to get a second receiver and hook it up to the W7 box and do
> _something_ to the keyboard to tell it which receiver to use.

It seems as if you need a KVM switch, even if you really only need to 
switch the K.

> [2] My criteria for feasibility are basically "I can do it from across
> the room" and "it doesn't involve removing the batteries".

So you should be looking for a KVM switch with some kind of remote 
control. I have no experience from these myself, but google found this:

http://www.uniclass.com.tw/english/01_product/02_detail.php?pid=1112

Maybe that could be a solution?

regards Henrik
-- 
The address in the header is only to prevent spam. My real address is:
hc351(at)poolhem.se Examples of addresses which go to spammers:
root@localhost postmaster@localhost

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#2738

In article <54e6d6db$0$294$14726298@news.sunsite.dk>,
Henrik Carlqvist  <Henrik.Carlqvist@deadspam.com> wrote:
>On Thu, 19 Feb 2015 19:44:39 -0500, Hactar wrote:
>> [2] My criteria for feasibility are basically "I can do it from across
>> the room" and "it doesn't involve removing the batteries".
>
>So you should be looking for a KVM switch with some kind of remote 
>control.

Most KVM switches are keyboard-controllable.  The 2-input ones usually
respond to Scroll Lock being tapped twice, or something similar.  As long as
at least one of the computers is on, the switch is powered up and should
respond to change requests.

The OP mentioned that one of the hosts is a Raspberry Pi.  One caveat with
those is that it might not be a bad idea to put a powered USB hub between
the Pi and the KVM switch, as the Pi isn't able to deliver much power
through its USB ports.

  _/_
 / v \ Scott Alfter (remove the obvious to send mail)
(IIGS( https://alfter.us/           Top-posting!
 \_^_/                              >What's the most annoying thing on Usenet?

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#2741

In article <mc7ksj$na3$2@dont-email.me>,
Scott Alfter <scott@alfter.diespammersdie.us> wrote:
> In article <54e6d6db$0$294$14726298@news.sunsite.dk>,
> Henrik Carlqvist  <Henrik.Carlqvist@deadspam.com> wrote:
> >On Thu, 19 Feb 2015 19:44:39 -0500, Hactar wrote:
> >> [2] My criteria for feasibility are basically "I can do it from across
> >> the room" and "it doesn't involve removing the batteries".
> >
> >So you should be looking for a KVM switch with some kind of remote 
> >control.
> 
> Most KVM switches are keyboard-controllable.  The 2-input ones usually
> respond to Scroll Lock being tapped twice, or something similar.  As long as
> at least one of the computers is on, the switch is powered up and should
> respond to change requests.
> 
> The OP mentioned that one of the hosts is a Raspberry Pi.  One caveat with
> those is that it might not be a bad idea to put a powered USB hub between
> the Pi and the KVM switch, as the Pi isn't able to deliver much power
> through its USB ports.

OK, thanks.  I haven't been able to get it to recognize anything through
a USB hub (tried SSD, thumb drive, and keyboard).  Maybe it's that hub.

-- 
-eben    QebWenE01R@vTerYizUonI.nOetP    ebmanda.redirectme.net:81
LIBRA:  A big promotion is just around the corner for someone
much more talented than you.  Laughter is the very best medicine,
remember that when your appendix bursts next week.  -- Weird Al

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#2739

In article <54e6d6db$0$294$14726298@news.sunsite.dk>,
Henrik Carlqvist  <Henrik.Carlqvist@deadspam.com> wrote:
> On Thu, 19 Feb 2015 19:44:39 -0500, Hactar wrote:
> >             +----+
> >             | TV |
> >             +----+
> >                |
> >            +--------+
> >            | switch |
> >            +--------+
> >             |      |
> > +--------------+ +-----------+
> > | Raspberry Pi | | Windows 7 |
> > |  (OpenELEC)  | |           |
> > +--------------+ +-----------+
> 
> Is that switch a KVM switch?

No, just V and A.  Composite, component, S-Video, etc.  It has a remote,
somewhere.

> > I want to get a second receiver and hook it up to the W7 box and do
> > _something_ to the keyboard to tell it which receiver to use.
> 
> It seems as if you need a KVM switch, even if you really only need to 
> switch the K.

Right.

> > [2] My criteria for feasibility are basically "I can do it from across
> > the room" and "it doesn't involve removing the batteries".
> 
> So you should be looking for a KVM switch with some kind of remote 
> control. I have no experience from these myself, but google found this:
> 
> http://www.uniclass.com.tw/english/01_product/02_detail.php?pid=1112
> 
> Maybe that could be a solution?

Neither one nor the TV speaks HDMI, but I guess that's the right idea.
Thanks.

-- 
-eben    QebWenE01R@vTerYizUonI.nOetP    ebmanda.redirectme.net:81
LIBRA:  A big promotion is just around the corner for someone
much more talented than you.  Laughter is the very best medicine,
remember that when your appendix bursts next week.  -- Weird Al

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