Subject:
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Re: pyroelectric sensor
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Newsgroups:
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lugnet.robotics
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Date:
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Sat, 3 Apr 1999 01:07:49 GMT
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Viewed:
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1141 times
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OneTimeCRX wrote in message <370462DA.BD45A16A@orion.ramapo.edu>...
> Hi All,
> I was wondering if anybody has been successful with making a
> pyroelectric motion sensor, or if anybody knows of where I can get some
> information on how to make a lego sensor out of one. Thanks in advance!
> --
This would be kinda crude, but you could put two thermisters where I have
CdS photocells in my differential photo sensor and get something like what
you are looking for. You might need to add a stage of gain some how. You
also would also need very light weight thermisters. Look on this page in
the homebrew section for the differential light sensor for more info.
http://ourworld.compuserve.com/homepages/Michael_Gasperi/lego.htm
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Message is in Reply To:
 | | pyroelectric sensor
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| Hi All, I was wondering if anybody has been successful with making a pyroelectric motion sensor, or if anybody knows of where I can get some information on how to make a lego sensor out of one. Thanks in advance! (26 years ago, 2-Apr-99, to lugnet.robotics)
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