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RE: Re: Hv multizone ir system Costing
- To: <ukha_d@xxxxxxx>
- Subject: RE: Re: Hv multizone ir system Costing
- From: "Ian B" <Ian@xxxxxxx>
- Date: Fri, 9 Aug 2002 20:22:26 +0100
- Mailing-list: list ukha_d@xxxxxxx; contact
ukha_d-owner@xxxxxxx
- Reply-to: ukha_d@xxxxxxx
OK. A
couple of plus points but one downer here.
I
am
active on this with wifeys blessing at the moment as babs is coming along
nicely. Plus one. I am contactable and most weeks have something new to
report
for those interested, plus 2.
The
down side is if I come across something I cannot solve = down
side.
Never
mind, more time next week with SWMBO blessing.
I
am
getting closer but it has been a long uphill struggle.
Feel
free to mail me for updates and watch the web page for less frequent but
bigger
updates.
Assuming I get the units to a reliable state I expect costs to be in
the
25 to 35 pound range. Please note this is a wild estimate at the moment and
is
subject to change. I will of course keep everyone informed. Next step is to
get
a telly into the shed for testing which is quite a challenge in its own
right.
Ian
So,
Ian.
Then
your system would suit us better, us without HV.
But
it seems far from beeng completed and no ideas about
prices....
Should I wait, or it will end up like famous
switcher....:-).
Cheers,
Nik
Sorry to drop in
half
way through the thread and not having read the
previous posts I hope I
don't put my foot in it but here goes.
It would not take much to
build an interface into a PIC to take the
place of HV. The problem is
the IR format I think. There are two
obvious options
1) Off the
top of my head you would need one PIC controller to set up
the zones
and
effectively replace HV. This would take a serial port.
You would then
need another serial port to send or at least control
the IR itself.
Something like a UIRT might work there. A little bitty
in approach but
should work.
Alternatively:
2) You have probably seen the
posts I have put up about the IR units
I am developing which turn IR
into data which can be serially
transmitted. I don't see why these
could
not be added to this system
as an interface to the PC. There would of
course need to be a PC
application and timing would be an issue but in
theory it is
possible. Franks devices (I think and correct me if I am
wrong)
simply route the raw IR signals down to different zones. I don't
think there is any changing of formats e.g. from IR to data etc. My
system does change the format as above but this would make learning
the IR and doing stuff with the data much easier.
My kit runs on
RS485 as well meaning you can have all the stuff off
one serial port
e.g. the PIC controller for setting up zones and the
IR interface
device.
There are other options depending on Franks design which can
be
explored in the future.
The simplest I think would be the
solution that takes two serial
ports mentioned above.
Mare after
I have thought about it a bit more..........
Ian B
p.s. as an
example of where it gets more complicated and the timing
problems
mentioned earlier: My Sony telly will only respond to an IR
signal made
up of three identical bursts of IR over X time frame.
Send only two and
nothing happens as I found out last night:-(( This
is why Siteplayer
etc. would not work without some considerable extra
brains. IR tends to
work in real time unlike data and some networks.
---
In ukha_d@y..., "Nikola Kasic" <nikola@k...> wrote:
> Somehow,
I
missed that request as well.
> Or it was not clear enough what that
was all about :-).
> It's a shame, because Frank is restricting it's
market to 10-15% of
the
> group, which have homevision (my
estimate).
> In fact, it seems already that there are more people
without
homevision
> interested in it.
> Maybe siteplayer
module can be an answer and will transform signals
from one
>
format to another.
> Nik
> -----Original
Message-----
> From: John Risby
[mailto:john@e...]
> Sent: 09 August 2002
13:50
> To: ukha_d@xxxxxxx> Subject:
RE:
[ukha_d] Re: Hv multizone ir system Costing
>
>
> >>And one even more important thing, will it be
able to work
without HV
> at some stage, i>.e.
will
it be possible to connect controller
unit to
> serial
port >on PC?
>
> >No ... i did ask when
designing the new board if pc comms was
required
> no
one replied so i took that as no one interested..........
>
> >Frank Mc
>
> I know we've
discussed this privately Frank, but I'm so sorry I
missed
> that request at the time. Ability to control
via the serial port
would
> be a great
feature.
>
> Actually, that leads to an idea...
perhaps somebody with
siteplayer/pic
> development
experience could build an additional module that
would
hang
> off a network and control Franks device, replacing
the role
homevision
> plays?
>
> thanks
> john
>
>
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