Subject:
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Re: IR Proximity Detection Problem
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Thu, 16 Jan 2003 14:53:17 GMT
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Viewed:
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3225 times
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Maybe the ambient light is too high ? in that case you can decrease visible
light sensitivity as well as shielding detector from red LED light using
this method : http://www.philohome.com/sensors/ir_sensitivity.htm (only hope
that this doesn't offend your "Lego purity" sense ;o)
Philo
www.philohome.com
In lugnet.robotics.rcx, Dirk Schlei writes:
> I have tried to get proximity dectection via RCX emitting IR
> (SendMessage/NQC) and Light Sensor (mounted on top of the RCX's IR unit).
> But the raw values seemed to be the same with/without emitting IR. Average
> value was 725. Went up to 800 (black paper) at the maximum or down to 650,
> respectively. Never got a difference bigger than 100. Any idea?
>
> Dirk
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Message is in Reply To:
 | | IR Proximity Detection Problem
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| I have tried to get proximity dectection via RCX emitting IR (SendMessage/NQC) and Light Sensor (mounted on top of the RCX's IR unit). But the raw values seemed to be the same with/without emitting IR. Average value was 725. Went up to 800 (black (...) (22 years ago, 16-Jan-03, to lugnet.robotics.rcx)
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