Subject:
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RE: Help with connecting pyroelectric sensor
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Tue, 7 Sep 1999 19:10:51 GMT
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Viewed:
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1317 times
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Here's the link to the pyro sensor
<http://www.acroname.com/robotics/parts/R1-442-3.html>
The schematic indicates that the reference moves relative to the output...
I think the reference and output terminals are mislabelled. Given
that they are mislabelled...
The reference output has a 20uA max load, so forget using it
without a buffer. The output pin is buffered though an opamp
and has a minimum load requirement of 125K, so you SHOULD be able
to hook it right up to the RCX, with the signal routing diodes
and Rin and C for the power supply of course.
Comments Michael?
Cheers,
Ralph Hempel - P.Eng
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Check out pbFORTH for LEGO Mindstorms at:
<http://www.hempeldesigngroup.com/lego/pbFORTH>
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Reply to: rhempel at bmts dot com
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