![]() I guess a follow-on question would be if anyone had any experience on the FLL table where they needed the robot to differentiate between the "no color" condition and black, and how reliable was the robot at doing that? I have not had the need to do that in the last seven years, nor am I aware of any teams trying to do that. ![]() Anyway, I was wondering if there was anyone here that had some knowledge of how the color sensor works internally and if it was a challenge to build $50 sensor that could tell the difference between these two conditions. ![]() I guess if the sensor can distinguish between brown and black, two colors that are pretty close together, then it does have the sensitivity to distinguish between black and no color. I assume that means that if there isn't anything close enough to reflect any color, then the "no color" condition is triggered? But black also doesn't reflect any light, so wouldn't it be the same? I suppose a shiny black technic beam does reflect some light, but I feel like the little that is reflected back would be very hard to distinguish from the "no color" condition. The color sensor can detect seven "colors", as well as "no color". I was looking at the programming for the color sensor and I noticed something interesting.
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