Re: Re: [Project] Kbd/LCD device

["Mark McCall" <mark@xxxxxxx>]

Andy

This is always going to be a problem when something is going to be designed
by committee.

Please stay in the discussion.  The more input the better!

M.



----- Original Message -----
From: "Andy Powell" <Andy@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Monday, June 04, 2001 12:11 AM
Subject: RE: [ukha_d] Re: [Project] Kbd/LCD device


> > As I understood it, the LCD module comprises an LCD panel, some
form of
> > user input, one of these rabbit jobbers running IP and an
ethernet
> > connection to the house, in a 1 or 2 gang UK wall socket sized
housing?
> >
> > If that is the case, I'd envisioned the LCD module as nothing
more than
> > a relatively dumb control surface - all it does is display
information
> > and capture user input, communicating with a host on the network
which
> > does all the legwork. Sort of like a severely limited X terminal
or VNC
> > terminal.
>
> That was the intention in my original suggestion, unfortunately it
seemed
> to get modified by what others wanted in the device.
>
> To make an LCD display device with a TCP/IP interface is basically
really
> simple. All that was required was a simple sub protocol for example :
>
> To display "Hello World" a simple ICMP Echo would work fine
and would
> also mean that any TCP/IP device capable of doing an ICMP Echo could
send
> a message - It does not need to be overly complex. If a button was
> pressed then the unit could simply send the commands embedded in the
> TCP/IP packets as data .. The unit would not have to identify itself
> because the IP packet sent out by it would contain both the MAC and IP
> addresses to uniquely identify it..
>
> As for single unit reliance (in the case of a dedicated controller)
the
> ideal situation would be to have the redundancy (discussed before)
where
> by multiple controllers sit on the network, one designated Primary and
> the others Secondary.. all the units (Primary/Secondary) would check
in
> with each other every so often...if one of them disappeared for any
> length of time it would be marked as missing and could be added to the
> list of "House Warning Messages" for display on the LCDs.
>
> I feel that all these projects are moving away from what I initially
> invisaged and with (what appears) to be one or two people making the
> decisions sometimes off list can see that what the group, individual
and
> developers want may be different things. As such I would like to
withdraw
> from the projects (was I even in?) and will continue to 'mess about'
with
> the things I'm doing now.. I'm quite happy to chip in with suggestions
> etc, but do not really see that either the development platform,
> language, and configurations fit in with my desires or requirements at
> present.
>
> The funding contribution offer does still stand though.
>
> Andy
>
>
> --- Tag-it! v2.0 (c) Andy Powell ,1998,1999,2000...and beyond..
>
> Always remember that you're unique, just like everyone else.
>
>
>
>
>
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>
>





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