Subject:
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Re: homebrew Temp sensor
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 4 Jan 1999 14:02:26 GMT
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Viewed:
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1314 times
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Put a capacitor in parallel with the thermister. Try at least 0.1 uF. You
can not use electrolytic types.
Peter Hesketh wrote:
> In article <36901A0A.6B212D89@gte.net>, Kevin A. Saddi <ksaddi@gte.net>
> writes
> > Sorry if this is old news guys, but I finally got my temp sensor
> > working! But I was wondering how I can keep the value from jumping
> > around.
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Message has 1 Reply:
 | | Re: homebrew Temp sensor
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| (...) Hmm.. why no elco? that is, if you make sure you alway plug your sensor on in the same way, you should get a constant +ve and -ve... Mindstorms does use the standar measuring trick of having DC current run thru the resistor, right? Jasper (26 years ago, 23-Jan-99, to lugnet.robotics)
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Message is in Reply To:
| | Re: homebrew Temp sensor
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| In article <36901A0A.6B212D89@gte.net>, Kevin A. Saddi <ksaddi@gte.net> writes (...) Use a smoothing algorithm such as: SmoothValue = ( JumpyValue + K * SmoothValue ) / ( K + 1 ) where K is a smoothing constant, eg 10 or 100. The bigger the K, the (...) (26 years ago, 4-Jan-99, to lugnet.robotics)
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