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Author Topic: Just a quick color sensor question...  (Read 502 times)

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Offline nijmegen96Topic starter

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Just a quick color sensor question...
« on: June 23, 2012, 10:06:04 PM »
Just to keep it short and sweet.
If I make this:

http://letsmakerobots.com/node/23768

Will it work as fast and reliably as this?:

http://tiltedtwister.com/tiltedtwister2.html

Just a note, I plan on using one RGB LED instead of the 4 colors, and how do the lego sensors work? Doesn't look like they flash the different colors like the homemade one. Could i just have all the colors (white) for it to reflect the color back? Also could I just buy the Lego color sensor and make it work with a microcontroller?

Offline Soeren

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Re: Just a quick color sensor question...
« Reply #1 on: June 24, 2012, 10:42:31 AM »
Hi,

[...] how do the lego sensors work? Doesn't look like they flash the different colors like the homemade one.

"LEGO sensor uses a RGB LED, and successively shines red, green and blue light on the object. Reflected light is collected by a light sensor sensitive to all wavelength."


Could i just have all the colors (white) for it to reflect the color back?

Yes, if you get a dedicated color sensor chip (plenty to find at TAOS)


Also could I just buy the Lego color sensor and make it work with a microcontroller?

Sure, it seems to just output an analog voltage.
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

Offline nijmegen96Topic starter

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Re: Just a quick color sensor question...
« Reply #2 on: June 24, 2012, 02:07:47 PM »
Alright Thanks!

 


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