Parallax Inc ColorPAL Colour Sensor Module

ColorPAL, colour/light sensor module

The ColorPAL is a miniature colour and light sensor which, through its RGB LED, doubles as a colour generator. For sensing colour, the ColorPAL uses its LED to illuminate a sample, one colour 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 colour.