Subject:
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Re: Color sensor and brick mixer MOC
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 2 May 2002 20:01:36 GMT
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Viewed:
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681 times
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In lugnet.robotics, Philippe Hurbain writes:
> As for ambient light, I thought this morning of an (obvious) improvement:
> add a step where no Led is lit (but where CDS resistor is active, the dummy
> position doesn't work) to measure ambient and substract it from readings.
I did this modification, very easy (simply connect R4 to pin 1 of IC10
instead of pin 10). The cycle becomes (starting at dummy position) : ambient
measure > red > green > blue > dummy. When you substract ambient value to
other components, you get slightly more latitude in sensor position/angle.
Philo
www.philohome.com
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Message is in Reply To:
 | | Re: Color sensor and brick mixer MOC
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| Hi John, (...) ;o) (...) Yes - and I think it is difficult to avoid. That's why my brick sorter places the brick in a fixed location, relatively shielded of ambient light. In this controlled environment, the color sensor is very reliable, and (...) (22 years ago, 30-Apr-02, to lugnet.robotics)
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