RE: PC interface to door push

["Paul Gordon" <paul_gordon@xxxxxxx>]

Actually Ian, couldn't this be done in a much simpler fashion with a serial
port, by just putting the bellpush switch across a couple of the serial
port 
control lines, - say either DSR or DTR and RI? - the theory being that you
configure the serial port to assert DSR or DTR to high all the time, then
the pushbutton causes a RING signal when pressed?

or is this utter b*llocks?

Paul G.



>From: "Ian B" <Ian@xxxxxxx>
>Reply-To: ukha_d@xxxxxxx
>To: <ukha_d@xxxxxxx>
>Subject: RE: [ukha_d] PC interface to door push
>Date: Tue, 28 May 2002 22:29:37 +0100
>
>Do you have a spare serial port? A simple PIC chip monitoring the bell
push
>wire and then a serial command to the PC would be a way to go? If you
want
>to know more tell me about the door push. is it a bell already or a
>dedicated line etc.
>
>If this may be the way to go let me know as it seems very trivial on
the 
>PIC
>end. Shouldn't cost much either.
>
>Ian B
>
>-----Original Message-----
>From: Paul Gordon [mailto:paul_gordon@xxxxxxx]
>Sent: 28 May 2002 22:11
>To: ukha_d@xxxxxxx
>Subject: Re: [ukha_d] PC interface to door push
>
>
>Alex,
>
>There are, as you say, several options...
>
>You could purchase a VIOM board from www.phaedrusltd.co.uk I have one
of
>these, and can highly recommend them, but it's massively overkill if
you
>only want 1 input... - However, if you want more in the future this
could 
>be
>very handy...
>
>There are Homeseer plugins/scripts which allow you to use a maximum of
four
>inputs through a standard joystick port. - There is a little bit of
>hardware
>work involved, but it's childishly simple stuff I believe...
>
>In fact, there are scripts that allow you to use a standard joypad
device 
>as
>an input device for homeseer, so I guess you could hotwire a joystick
>button
>to your bellpush button....
>
>Take a look through the Homeseer message board, I definately recall
seing
>these joystick input methods discussed there...
>
>HTH,
>
>Paul G.
>
>
>
> >From: "kinchyuk" <kinchyuk@xxxxxxx>
> >Reply-To: ukha_d@xxxxxxx
> >To: ukha_d@xxxxxxx
> >Subject: [ukha_d] PC interface to door push
> >Date: Tue, 28 May 2002 12:18:40 -0000
> >
> >
> >Sorry if this one has been covered recently, I've been a bit
missing
> >from the list of late.
> >
> >I want to hook up a door push to Homeseer, which then does the
> >necessary alerting. I've looked at the X10 powerflash, but that
seems
> >a bit of a waste of time (and money!) to go from button to X10,
then
> >X10 back to Homeseer - even more so considering the run from
the
> >Homeseer box to the door is < 10m.
> >
> >So I guess I'm after some way of getting an external trigger
into
> >Homeseer via a PC. I'm sure it's stupidly simple but I just
can't
> >quite get my head around it. Would I need some sort of PCI
> >interfacing card?
> >
> >Alex
> >
>
>
>
>
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