AnsweredAssumed Answered

vrf Simple question maybe

Question asked by VRFuser on Aug 13, 2008
Hi all,

Thanks for all of your comments.  In the end I gave in, and decided to purchase a Velleman DIY USB-A/D kit!!  $75 Aussie dollars, and we are away!

See here  http://www.velleman.be/ot/en/product/view/?id=351346

I have already imported the dll functions into VEE, and I'm awaiting delivery of the kit..

Thanks again and apologies for being so boring with the end result.  I do usually like the exotic solution, however time is also of the essence!

Duncan

Mark Miller wrote:
> I'm guessing what you want is to know how long during the night the
> switch is open and how long it is closed.  If so I have a fairly low
> tech solution.
>
> Buy two analog clocks, battery powered.  Put a battery in one and wire
> the switch through the battery path on the other one.  In the morning
> the clock 'controlled' through the switch will have less elapsed time
> on it.  Done.  And now you have two clocks.
>
> If budget is a problem you could buy one clock and compare it to your
> watch, or ask someone what time it is.  8^)
>
> Regards,
> Mark.
>
> Mark Miller, Product Intro and Manufacturing Manager 
> TriAccess Technologies   www.triaccesstech.com  
> 2255 Challenger Way, Suite 103  Santa Rosa, CA 95407
> voice: 707-526-4498 x28   Fax: 707-526-1485   Cell: 510-381-1412
>
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>
> -----Original Message-----
> From: Duncan Wild [mailto:duncan.wild@uwa.edu.au]
> Sent: Wednesday, August 06, 2008 7:35 AM
> To: VRF
> Subject: [vrf] Simple question maybe
>
> Hi all,
>
> Apologies if this has been covered.
>
> I am looking for a simple solution.  I have a switch, whose status I
> want to monitor for a long time with VEE.  That is I want to know if
> it has opened during the night.  I also do not want to spend a great
> deal of my research funds to do it!
>
> Can anyone suggest a way, using say for example a serial port, or a
> parallel port, to do this?  I feel that I could write the programme
> easily with VEE, it is more the logistics of how to use one of these
> ports..
>
> For more information, it is a water flow switch, and the water is
> servicing a piece of apparatus.  I have my doubts on the consistency
> of the water supply, and want to test how often during the night it
> drops below the level needed to keep the switch closed.
>
> Many thanks in advance
> Duncan
>  

--

***************

Dr Duncan A. Wild
Lecturer
Discipline of Chemistry
School of Biomedical, Biomolecular & Chemical Sciences The University of Western Australia M313, 35 Stirling Highway Crawley WA 6009



Phone Office      61 (8) 6488 3178

Phone Lab         61 (8) 6488 4439
Fax                   61 (8) 6488 1005

Email                duncan.wild@uwa.edu.au <mailto:duncan.wild@uwa.edu.au>

Web                
http://www.chem.biomedchem.uwa.edu.au/staff/homepages/dr_duncan_wild

***************





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