[HomeBrew] Re: Station Control via PC Serial Port

[Doug Laidlaw]

I have a kit for an interface which runs under the QBASIC supplied with 
Win95.  I am running Win98, but QBASIC can be installed from the CD-ROM.  It 
runs off the parallel port, and has 8 analog inputs, 8 O/C outputs and 2 
analog outputs.  Details for connecting relays are provded.  I saw another 
kit described that had relays on the board. This one is Australian made (Dick 
Smith - he had an outlet in the States a few years ago,) but I could make 
details available.

There is an online catalog at http://www.dse.com.au .  The catalog number is 
K-2805.

73,

Doug VK3KDI.

On Mon, 21 Jan 2002 07:44, you wrote:
> I believe the term is 'Real World Interfacing' and it's
> done MANY places...  Just one locally is a private store-
> n-lock place that has their card reader/number pad and the
> access gate interfaced via a PC using A/D and D/A controller
> cards.  Take a look at the Digi-Key web site or in one of
> their later hardcopy catalogs and you should find ISA cards
> (and serial/parallal external boxes) in there that have 8 to 10
> small relays on them, that could of course be used to control
> LARGER relays for heavier loads.
>
> I came about 'this' close to taking on the job of building
> and integrating the system for them, but didn't have a lot
> of contacts (didn't even know about Digi-Key) at the time,
> and had just become 'wheel-less' (no car), so I passed on it.
> Would have probably been a neat project, but I just didn't
> have the resources or the time, then.
>
> 73 - Bruce
>
> On Thu, 17 Jan 2002, Deon Erwin wrote:
> > A handicapped Ham sucessfully controls his radio with his PC, but has the
> > following problems:
> >
> > 1.  He is physically unable to operate switches and other station
> > equipment. A small program running in the background in Win 95/98 to
> > switch relays and transistors via the serial port, will be ideal to
> > select antennas and switch equipment.
> >
> > 2..  He also requires a program to control his antenna rotator.  Perhaps
> > via a serial port too.
> >
> > Can anyone direct me to the solutions?
>
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