*BSD News Article 83945


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From: j@uriah.heep.sax.de (J Wunsch)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Interfacing sensors to FreeBSD
Date: 30 Nov 1996 16:54:26 GMT
Organization: Private BSD site, Dresden
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References: <E1nIsI.6E0.G.nanguo@nanguo.chalmers.com.au>
Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch)
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robert@nanguo.chalmers.com.au (Robert Chalmers) wrote:

> Does anyone know how to go about interfacing a temperature sensor to
> a FreeBSD box, so that I can get a temperature readout displayed?

You need some form of an A/D converter.  The thing that comes closest
to such a task in the PC environment is the game port, but it can only
convert resistivity, and its interface inside the machine is fairly
ugly (no interrupts possible, and you're responsible to measure the
pulse time yourself).

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)