Newsgroups: comp.robotics
Path: cantaloupe.srv.cs.cmu.edu!das-news2.harvard.edu!news2.near.net!news.mathworks.com!solaris.cc.vt.edu!uunet!uunet.ca!uunet.ca!nucleus.com!janderso
From: janderso@nucleus.com (Dave Anderson)
Subject: temp via game port ?
Message-ID: <Cyo8rq.E8L@nucleus.com>
Organization: Nucleus Information Service
Date: Thu, 3 Nov 1994 03:09:25 GMT
X-Newsreader: TIN [version 1.2 PL2]
Lines: 8

I am trying to figure out how to make a thermocouple that varies only a 
few 100 ohms over room temperature ranges, vary over the range of 0-100K. 
You see the PC game port can read 0-100K (because  thats what joysticks 
are). I think I need some op-amp circuit to amplify my resistance changes 
of a few 100 ohms by a factor of 100. Any ideas would be appreciated.


Dave Anderson
