The Parallax ColorPAL is a miniature color and light sensor which uses an RGB LED to detect and generate light for color sensing.
Ever need a convenient way to identify color with your embedded project? The Parallax ColorPAL lets you do this, with a simpler 3-pin interface!
The ColorPAL is a miniature color and light sensor which, through its RGB LED, doubles as a color generator.
For sensing color, the ColorPAL uses its LED to illuminate a sample, one color component at a time, along with a broad-spectrum light-to-voltage converter to measure the light reflected back. The amount of light reflected from the sample under illumination from each red, green, and blue LED can be used to determine the sample’s color.