Re: Re: Could be useful project, anyone tried this?

[Dan Ward <mail@xxxxxxxxxxxxxxxxxxx>]

Hi Dave,

Which RFXCOM modules were you thinking of using?

Dan

David Ward wrote:
>
> The heap doorbells I have incorporate a separate RF receiver, the
> decoder is a 'epoxy blob' but the RF section is a separate PCB with
> handily marked +3V GND and Data :)
>
> Alternatively you could look at the RF modules from RFXCOM
>
> Dave
>
> _____
>
> From: ukha_d@xxxxxxx <mailto:ukha_d%40yahoogroups.com>
> [mailto:ukha_d@xxxxxxx <mailto:ukha_d%40yahoogroups.com>]
On
> Behalf
> Of Gary
> Sent: 26 November 2006 14:05
> To: ukha_d@xxxxxxx <mailto:ukha_d%40yahoogroups.com>
> Subject: [ukha_d] Re: Could be useful project, anyone tried this?
>
> Hi Kim,
>
> How did you interface the RF part of the doorbell? did you have to
> decode it?
>
> Regards
>
> Gary
>
> --- In ukha_d@xxxxxxx <mailto:ukha_d%40yahoogroups.com>
> <mailto:ukha_d%40yahoogroups.com>
, Kim
> Wall <kim@...> wrote:
> >
> > Gary wrote:
> > > http://www.electronicsinschools.org/page.php?m=106&ps=103&p=414
> <http://www.electronicsinschools.org/page.php?m=106&ps=103&p=414>
> <http://www.electronicsinschools.org/page.php?m=106&ps=103&p=414
> <http://www.electronicsinschools.org/page.php?m=106&ps=103&p=414>>
> >
> > > Anyone know how to interface it or tried something like it,
the
> > > website already has the timings, they seem a bit like X10?
> >
> > Not quite what you're thinking, but I have a wireless doorbell
> > interfaced with a computer (via some intermediate PIC-based
serial
> > comms, but it originally connected directly to a pin on the
parallel
> > port) by simply rectifying, smoothing and driving a transistor
with
> the
> > audio output of the bell unit. The standard
"ding-dooooong" sound
> > results in the open collector going low for about 2 seconds.
> >
> > For more general use, you'd really want to get at the codes
instead of
>
> > having one doorbell per signal - unfortunately, at least in my
> doorbell
> > receiver, everything's on a single chip under a blob of epoxy...
> >
> >
> > Kim.
> >
>
> [Non-text portions of this message have been removed]
>
>
>
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