Subject:
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Re: block scoreing....
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Newsgroups:
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lugnet.org.ca.rtltoronto
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Date:
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Mon, 8 Sep 2003 23:30:35 GMT
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Viewed:
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450 times
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In lugnet.org.ca.rtltoronto, Chris Magno wrote:
> Iain, this is "the deal"
>
> my LX sensor is placed at a point that when no bricks are in the EOAT, my reading on
> the light sensor is 750.
>
> when i get a white brick, I read.... 500. WOW, that's an easy sort!!!
>
> BUT, when I get a black brick, the LX reading is..... are you ready for
> this....... 750.
>
> dead on. it cant tell the difference between nothing, and black.
>
> I've tried a few things... adding lights, more than one lx sensor, using the sensor
> to test for ANY block, then process from there... BUT still it always reads the same
> as ambient!!!
>
> I've put a light proof box around the head just as a test... same result.
>
> I'm stumped.
>
> when I just use a plain RCX, and sensor, and test white from black from "ambient" I
> do see 3 different reading.... but my EOAT is set up to read as a black block.
That actually makes sense. (!) Though if you put a light brick directly opposite
your light sensor, you should definitely be able to distinguish between having
nothing there, and having something there. And when something is there, you
should be able to tell if it's black or white.
LIGHT--(= [space] }--LIGHT_SENSOR
Make sure that the light is shining directly into the light sensor. Use a chrome
headlight piece if you have one. Then your 'empty' reading will be just the
light. Fill that space with something, and the reading will definitely change.
Depending on what it changes to, you'll know that A) You have a brick now, and
B) which colour it is.
--
David Schilling
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Message has 1 Reply:
Message is in Reply To:
 | | Re: block scoreing....
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| (...) dope - y dope - e doe... gee, now why did I not think of that. wow, you guys are SO SMART!!! just like steve is so smart (and funny) :/ Iain, this is "the deal" my LX sensor is placed at a point that when no bricks are in the EOAT, my reading (...) (21 years ago, 8-Sep-03, to lugnet.org.ca.rtltoronto)
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