Re: RS-232 Ambient temprature sensor

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Article #2636

#2636

From: John Schuch
Date: Thu, 09 Apr 1992 01:50

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In article <1992Apr8.090004.19143@ke4zv.uucp> gary@ke4zv.UUCP (Gary Coffman) writes:
>In article <1992Apr5.013215.11028@ttank.ttank.com> karl@ttank.com writes:
>>What I would like to build is a Thermometer that can communicate
>>ambient temprature to a computer via RS-232.  I would like to tie
>
>Well, I wouldn't bother with RS232, but you could do it to a parallel
>port quite easily like this:
>

I don't know, how about connecting a temperature sensitive oscilator
to the DTR (DSR? ) pin of the serial port. The period of the signal,
or the number of ticks within a given time would indicate the temperature.

John

------------------------------------------------------------------------
John Schuch           hbg6@citek.mcdphx.mot.com            (602)438-3008
------------------------------------------------------------------------
      One wonders if there would be such a pursuit of artificial
      intelligence if there were more of the natural kind around.
------------------------------------------------------------------------

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References: <1992Apr5.013215.11028@ttank.ttank.com> <1992Apr8.090004.19143@ke4zv.uucp>

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Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!rutgers!mcdchg!mcdphx!hbg6
From: hbg6@phx.mcd.mot.com (John Schuch)
Newsgroups: sci.electronics
Subject: Re: RS-232 Ambient temprature sensor
Keywords: hardware project
Message-ID: <1992Apr9.015032.15955@phx.mcd.mot.com>
Date: 9 Apr 92 01:50:32 GMT
References: <1992Apr5.013215.11028@ttank.ttank.com> <1992Apr8.090004.19143@ke4zv.uucp>
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