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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Fri, 19 Nov 1999 01:21:24 GMT
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Viewed:
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852 times
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This is an oppurtune time to interject my problem...I don't have the capacity
to understand how you connect a sensor like this one to the rcx. The diagram
on the website shows four connection points: V+, reference, gnd, and output.
I only retain about 5% electronics knowledge (Michael Gasperi can vouch for
that one!) and would like to get all this behind me. I did purchase Compton's
Learning Electronics to use on my computer yesterday; I don't want to
be "electronically challenged".
In lugnet.robotics, J. Todd Graham writes:
> Acroname sells a pyroelectric sensor that will work for what you need. The
> kit is consists of a Eltec 442-3 detector and a matched frensel lens. The
> kit cost is $46. I have successfully used this sensor with the MIT
> Handyboard, and assume it will work as well with the RCX. It basically
> functions as an actively powered analog sensor (similar to the light
> sensor). +5v, ground, and an analog signal output are all that are
> required. I would assume the same basic code that drives the lego light
> sensor could be applied to the pyro sensor. Details of the sensor can be
> found at http://www.acroname.com/robotics/parts/R1-442-3.html
>
> Todd
>
>
>
>
> -----Original Message-----
> From: Michael Gasperi [mailto:gasperi@alynk.com]
> Sent: Friday, April 02, 1999 7:08 PM
> To: lugnet.robotics@lugnet.com
> Subject: Re: pyroelectric sensor
>
>
> 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 has 2 Replies:
 | | Re: pyroelectric sensor
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| rhendrix <rmhendrix@hotmail.com> wrote in message news:FLF7ro.5z8@lugnet.com... (...) capacity (...) diagram (...) output. (...) for (...) Compton's (...) This is kinda like deja vu all over again. I thought somebody already did this one. I would (...) (25 years ago, 19-Nov-99, to lugnet.robotics)
| | | Re: pyroelectric sensor
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| I have recently made the interface to connect the Eltec 442-3 pyroelectric sensor, using Michael Gasperi's analog interface as a reference (thanks Michael), although some minor modifications need to be made. The pyroelectric sensor works very well, (...) (25 years ago, 19-Nov-99, to lugnet.robotics)
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Message is in Reply To:
| | RE: pyroelectric sensor
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| Acroname sells a pyroelectric sensor that will work for what you need. The kit is consists of a Eltec 442-3 detector and a matched frensel lens. The kit cost is $46. I have successfully used this sensor with the MIT Handyboard, and assume it will (...) (26 years ago, 3-Apr-99, to lugnet.robotics)
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