[windows2000] Re: Small voltage output from a computer?

  • From: "Columna, Melvin" <ColumnaM@xxxxxxxxxxx>
  • To: "'windows2000@xxxxxxxxxxxxx'" <windows2000@xxxxxxxxxxxxx>
  • Date: Mon, 28 Oct 2002 11:14:36 -0500

Try the X10 FireCracker module.  If the buzzer runs on 115V, you can convert
the switch to an X10 rocker switch.

Again, you will need to write code to talk to the FireCracker (which uses a
COM port)

-----Original Message-----
From: jmeadows@xxxxxxxxxxxxxxxxx [mailto:jmeadows@xxxxxxxxxxxxxxxxx]
Sent: Monday, October 28, 2002 10:27 AM
To: windows2000@xxxxxxxxxxxxx
Subject: [windows2000] Re: Small voltage output from a computer?




That would work on each individual PC system.

The problem is that we have an existing buzzer system spreading over the
whole factory activating about 50 buzzers, this lets 450 workers know when
to go home and if their running late!

What we were hoping to do was get a small output from the 'controlled time'
PC  that could activate the buzzers on time.

Whilst looking on the net I found some PCI cards which would do a similar
job but were very expensive, I was wondering if there was a cheaper
alternative?

Thanks for the help in advance!!

Jonathan Meadows
Apprentice Technician
Landis Lund
Crosshills
England




 

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                      Sent by:                     cc:

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Re: Small voltage output from a computer?                       
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                      28/10/2002 15:14

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You're joking right ?

If not then you could always use either CTS or RTS and GND (on a COM port)
hooked to a relay to up the voltage (plus you'll need to write the code to
turn it on/off), or you could just hook up a sound card and speakers -
sample the sound the bell makes then just play it back !!!!!


 jmeadows@xxxxxxxxxxxxxxxxx wrote:
Hi all

Is there anyway to get a small voltage output from a computer?

We are wanting a PC to activate our works 'buzzer' when it is time to start
and finish work. The system we have in place at the moment can't
synchronize it's time with our PC's. We are wanting a PC to activate the
buzzer when the time is right, this requires a small voltage output.

I think I read somewhere that COM1 will give a voltage output but I'm not
too sure how to activate it?

Any help would be much appreciated.

Thanks

Jonathan Meadows
Apprentice Technician
Landis Lund
Crosshills
England




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