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9th May 2007, 03:33 PM
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 Sensor for Black Color... Can anybody help me how to build a sensor that can distinguish between black and white...my aim is only to build a low cost sensor that can detect black color only? then disregard the white ones. Is this possible to build? any idea is such a big help for me...thx... | |
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9th May 2007, 04:20 PM
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| An LED and a photo-diode/transistor is all you need, you can even buy them in a single encapsulation for this exact purpose - try googling for 'line follower'. | |
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