The RGB color sensor block, invented by David Gilday, greatly expands the possible number of colors that the EV3 color sensor can detect. It works by scanning a color and reporting the relative red, green, and blue (R,G,B) light intensities, each on a scale from 0 to 255. This means that in theory, the RGB programming block will allow the EV3 color sensor to detect 16.8 million distinct colors. In reality, due to factors such as variations in ambient light intensity, this number is closer to 1000 distinct colors, which is still a massive improvement over the EV3 color sensor’s original range of 7 colors. In today’s video, I will introduce the basics of RGB color, demonstrate programming with the RGB color sensor block, and make a simple program to detect the color orange.
The download for the RGB color sensor block is available on David Gilday’s website: http://mindcuber.com/mindcub3r/mindcub3r.html
Check out my book, “Building Smart LEGO MINDSTORMS EV3 Robots,” available on Amazon: https://amzn.to/2MyGVCl
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