Re: ir transmitter some success

["Frank Mc Alinden" <armagh@xxxxxxx>]

Hi Ian
            What do
you mean by collisions ? Also did you by chance read a
previous post by Dave Mc laughlin regarding Can Bus . Now thats
something
worth having a look at . Apparently works as a multi master  
system were
the unit with highest prioirity message gets control of the bus no
polling
required. Sounds good eh?

Frank Mc

----- Original Message -----
From: "Ian B" <Ian@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Sunday, June 02, 2002 6:40 PM
Subject: RE: [ukha_d] ir transmitter some success


> Hi Des
>
> What you need is the system I am in the middle of building. It will
give
> zoned input and output all down the serial port. It won't be
connectable
> directly to HV or similar though (I don't think). It is a work in
progress
> and time is the problem as always.
>
> I ended up building this after trying to do collision detection with
logic
> chips and effectively doing what you suggest. I decided this was a
quick
way
> to insanity!!
>
> I wish you luck
>
> Ian B
>
> >-----Original Message-----
> >From: Des Gibbons [mailto:des@xxxxxxx]
> >Sent: 02 June 2002 07:38
> >To: ukha_d@xxxxxxx
> >Subject: RE: [ukha_d] ir transmitter some success
> >
> >
> >Frank,
> >
> >
> >OK, just to really make things complicated ;)
> >
> >Would it be possible, you're gonna love this, to reverse the
whole
concept
> >and use it for zoned IR input :) obviously each zone would need a
TSOP or
> >similar, but is there a simple way of using trannies to indicate
which
zone
> >is active and send the data on its way. Collisions seem to be the
biggest
> >stumbling block to me :/
> >
> >Obviously the LPT port would have to be bi-directional.
> >
> >/me scurries off to see how many pins are available on an LPT port
;)
> >
> >Cheers, Des.
> >
> >> -----Original Message-----
> >> From: Frank Mc Alinden [mailto:armagh@xxxxxxx]
> >> Sent: 02 June 2002 18:23
> >> To: ukha_d@xxxxxxx
> >> Subject: Re: [ukha_d] ir transmitter some success
> >>
> >>
> >> Now thats Better Des
>
>>                                 
I cant see why not . So long as you
dont
> >> change the state of the  lpt  port  pins that
are being used for the
> >> multiplexer while transmitting just the tx pin . Pin 4
which
> >> enables the 555
> >> i would opto isolate from the printer port.
> >>
> >> Frank Mc
> >> ----- Original Message -----
> >> From: "Des Gibbons" <des@xxxxxxx>
> >> To: <ukha_d@xxxxxxx>
> >> Sent: Sunday, June 02, 2002 3:51 PM
> >> Subject: RE: [ukha_d] ir transmitter some success
> >>
> >>
> >> >
> >> >
> >> > >
> >> > > Sorry Des
> >> >
>                
I just assumed serial . That shouldnt be a problem
> >> > > ,selecting zones . I assume some other device is
generating
> >> the ir 38khz
> >> > > carrier?
> >> > >
> >> >
> >> >
> >> > errr, the LPT port :)
> >> >
> >> > http://www.czechin.com/minidisc/gener.gif
> >> >
> >> > Now, can they both be on the same LPT port is the
question :)
> >> >
> >> > Des
> >> >
> >> >
> >> > For more information: http://www.automatedhome.co.uk
> >> > Post message: ukha_d@xxxxxxx
> >> > Subscribe:  ukha_d-subscribe@xxxxxxx
> >> > Unsubscribe:  ukha_d-unsubscribe@xxxxxxx
> >> > List owner:  ukha_d-owner@xxxxxxx
> >> >
> >> > Your use of Yahoo! Groups is subject to
> >> http://docs.yahoo.com/info/terms/
> >> >
> >> >
> >>
> >>
> >>
> >> For more information: http://www.automatedhome.co.uk
> >> Post message: ukha_d@xxxxxxx
> >> Subscribe:  ukha_d-subscribe@xxxxxxx
> >> Unsubscribe:  ukha_d-unsubscribe@xxxxxxx
> >> List owner:  ukha_d-owner@xxxxxxx
> >>
> >> Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
> >>
> >>
> >>
> >
> >
> >
> >For more information: http://www.automatedhome.co.uk
> >Post message: ukha_d@xxxxxxx
> >Subscribe:  ukha_d-subscribe@xxxxxxx
> >Unsubscribe:  ukha_d-unsubscribe@xxxxxxx
> >List owner:  ukha_d-owner@xxxxxxx
> >
> >Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
> >
> >
> >
>
>
>
> For more information: http://www.automatedhome.co.uk
> Post message: ukha_d@xxxxxxx
> Subscribe:  ukha_d-subscribe@xxxxxxx
> Unsubscribe:  ukha_d-unsubscribe@xxxxxxx
> List owner:  ukha_d-owner@xxxxxxx
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>



For more information: http://www.automatedhome.co.uk
Post message: ukha_d@xxxxxxx 
Subscribe:  ukha_d-subscribe@xxxxxxx 
Unsubscribe:  ukha_d-unsubscribe@xxxxxxx 
List owner:  ukha_d-owner@xxxxxxx

Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.