Have you thought of simply sticking your hand out the door to see if its cold, wet or dry ;-) hehehe
Actually, a few years ago wrote an interface in Delphi that read the temperatures off DS1820's which are a one-wire thermistor put out by Dallas Semi conductors. They were even used in the Space Station...the thermistors not my interface :-) They however were a bit dodgy as it turned out, and they brought out the DS1821 which had a far better accuracy level. Although I think from memory they changed them from 8bit to 7bit. Anyway, I had a bunch of them all over the house and outside. Then in the morning I could see the temperature range (via my application) inside and out over night. How use full was it? Not a lot, but it kept me off the streets, but not the booze :-) I also played around with the DS1620 and there was another one which did A2D conversions as well as a thermisor built in and had a 256K memory built in. The Ds1620 is/was a chip with a thermistor built in and it also had an onboard memory, but I also logged the temps to external memory. I designed the circuits and programs again and we were going to use them to replace some temperature loggers at work that are used to monitor fridge temps for vaccines etc. However, they only had a resolution of 0.5C so they were no good in the end....oh well. Jeremy -----Original Message----- From: delphi-boun...@delphi.org.nz [mailto:delphi-boun...@delphi.org.nz] On Behalf Of Jeremy North Sent: 25 March 2009 20:31 To: NZ Borland Developers Group - Delphi List Subject: Re: [DUG] Weather Stations I commute by bike so I'd like to know the temperature in the mornings. It had rain and appear cold, but it wasn't. It was almost twice the morning temperature than the day before. I didn't want to have to turn on my PVR to check the temperature (nor a computer). Interface to a PC because, well I'm a programmer - do we really need a reason to want to do that! On Wed, Mar 25, 2009 at 4:44 PM, Steve Peacocke <st...@peacocke.net> wrote: > "No, but I've GOTTA HAVE ONE" is probably the wrong answer for that > :o) > > Steve Peacocke > Melbourne > > > On Wed, Mar 25, 2009 at 4:39 PM, Jeremy Coulter <jscoul...@gmail.com> wrote: >> >> Have you never heard of gadgetitous ??? :-) > > _______________________________________________ > NZ Borland Developers Group - Delphi mailing list > Post: delphi@delphi.org.nz > Admin: http://delphi.org.nz/mailman/listinfo/delphi > Unsubscribe: send an email to delphi-requ...@delphi.org.nz with Subject: > unsubscribe > _______________________________________________ NZ Borland Developers Group - Delphi mailing list Post: delphi@delphi.org.nz Admin: http://delphi.org.nz/mailman/listinfo/delphi Unsubscribe: send an email to delphi-requ...@delphi.org.nz with Subject: unsubscribe
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