Subject:
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Re: IR Ball (was Soccer-Playing Robots)
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 7 Sep 2000 07:08:08 GMT
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Viewed:
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654 times
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In lugnet.robotics, "Wilcox, Doug" <Doug.Wilcox@iMcKesson.com> writes:
> The Lego light sensors are particularly sensitive to infra-red (one of those
> gems of information that I've picked up from the robotic mailing list), so
> the standard Lego light sensors can be used to "see" a ball that's throwing
> off lots of IR, like the one Marco and Mario and Giulio built.
I tried to build something like this. I was just trying to make a film
canister into a beacon (even if the LEDs had to be external). I was using
high-output IR LEDs powered by small lithium watch/camera batteries. What I
discovered was that no amount of IR LED seemed to be enough to trigger the LEGO
light sensor usefully.
I'm still kind of bummed about it.
--Ben
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Message has 1 Reply:
 | | Re: IR Ball (was Soccer-Playing Robots)
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| (...) LEGO (...) Hi Ben It seems that the Lego IR sensor is like a sport car: when you think about power you never have enough. Me and Giulio Ferrari made somethin gworking using a lot (28+6) of led to obtain results. When you think you have enough (...) (24 years ago, 7-Sep-00, to lugnet.robotics)
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Message is in Reply To:
| | IR Ball (was Soccer-Playing Robots)
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| The Lego light sensors are particularly sensitive to infra-red (one of those gems of information that I've picked up from the robotic mailing list), so the standard Lego light sensors can be used to "see" a ball that's throwing off lots of IR, like (...) (24 years ago, 1-Sep-00, to lugnet.robotics)
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