Color sensor

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filet_o_freak
 
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Joined: Sun Feb 22, 2009 12:47 am

Color sensor

Post by filet_o_freak »

Hello,
I have an Arduino kit and would like to get some input from a color sensor to drive some RGB LEDs. I need the sensor to be able to pick up the color of an object, around the size of a shirt, within a 1 to 10 feet range. It does not need to be precise, I just need a general idea of the color that is passing by. I need help finding the sensor, I should be able to figure out how to do the rest. Any help for a novice is greatly appreciated.
Thanks !
Dylan
Last edited by filet_o_freak on Sun Feb 22, 2009 4:13 am, edited 1 time in total.

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amberwolf
 
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Re: Color sensor

Post by amberwolf »

I think you might get by with a lens picking up the light from the shirt and sending it to a set of three simple photoresistors or phototransistors (like an Ambient Light Sensor module), each with it's own Red, Green or Blue filter over it, then creating either a formula or a lookup table in software to measure what color is being sensed based on the amount of light each one picks up.

Using a CCD would probably be even better results, but I don't know how much more complicated the hardware would be for that.

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opossum
 
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Re: Color sensor

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