[Sussex] Digital IO card

[Brendan Whelan]

Colin, Steve and Richie,

Thanks for the response - I had wondered whether it was practical to use one
of the existing ports.  At this stage I am simply looking to demonstrate
flashing a light can be done, so a simple solution will be appropriate. How
can I send a signal, ideally from PHP program, to the printer port? Any
pointers or links are very welcome.

Thanks, Brendan
----- Original Message -----
From: "Steve Dobson" <steve at dobson.org>
To: "LUG email list for the Sussex Counties" <sussex at mailman.lug.org.uk>
Sent: Tuesday, March 08, 2005 2:42 PM
Subject: Re: [Sussex] Digital IO card


> Brendan
>
> On Tue, Mar 08, 2005 at 12:17:01PM -0000, Brendan Whelan wrote:
> > We have a system which is used in a Blood Transfusion lab. I want
> > to add a digital IO card to a Fedora Core 3 system so that I can
> > flash some alarm lights when the user needs to attend to an urgent
> > request for blood.
> >
> > Has anyone recommendation for a simple digital IO card that has a
> > Linux driver.
>
> If all you are doing is driving a switch then I suggest you look
> at using the parallel port [1].
>
> Steve
>
> [1]
> http://ourworld.compuserve.com/homepages/Bill_Bowden/page6.htm
>
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