Eliot] A while ago [Eliot] covered the MoMolight, a color changing led project controlled by the colors playing on your monitor.

If you know the red, green, and blue components of the light that correspond to maximum reflectance, then you know the color of the object. Their sensor uses a four-lead RGB LED, but we suppose a ...

RGB LEDs are commonly used in decorative ... allows for a more accurate and natural white color light, which is not possible with just the mixing of red, green, and blue. The inclusion of the ...