Subject:
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Re: Color Sensor
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 9 Feb 2005 16:02:26 GMT
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Viewed:
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1293 times
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In lugnet.robotics, Michael Gasperi wrote:
> It's been a long time since I posted anything new here. It's good to be back.
>
> I just added a big article on building an Input Multiplexer and Color Sensor for
> the RCX to my website: http://www.plazaearth.com/usr/gasperi/lego.htm .
Hi Micheal
I intend to have a crack at building your sensor. At the bottom of the page it
says
"If you use the color sensor to sort bricks, you need to calibrate the hue
reading for the bricks you want to sort with a controlled light source."
Could you elaborate on "with a controlled light source".
I'm wondering what a "controlled light source" is, presumably it's a light
source whose performace conforms to a certain specification. I'm also wondering
how to mount it, respectively to both the sensor and the brick, for optimium
performance.
Thanks
Steve
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Message has 1 Reply:
 | | Re: Color Sensor
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| (...) The spectrum of the light reflecting off something is a function of the original light spectrum and the color of the object. You need to control the light because different light sources have their own color spectrum. For example if you (...) (20 years ago, 10-Feb-05, to lugnet.robotics)
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Message is in Reply To:
| | Color Sensor
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| It's been a long time since I posted anything new here. It's good to be back. I just added a big article on building an Input Multiplexer and Color Sensor for the RCX to my website: (URL) . (20 years ago, 2-Feb-05, to lugnet.robotics)
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