[youtube= [Kyri] has made a simple circuit to do color detection using an RGB LED. Simply set the LED to the color you want to detect then wave the object over it. Another LED will light up if the … ...

[Fjord Carver] brings together an RGB LED and CdS Photoresistor to make a color sensor. Those Cadmium Sulfide lights sensors usually have a very wide swing of resistance when exposed to varying lev… ...

Vishay Intertechnology, Inc. has introduced a new tricolor LED that provides luminous intensity to 2,800 mcd at 20 mA for ...