Lasers, LEDs and light sources are devices that create light. LEDs (light emitting diodes) convert an electrical current into light using spontaneous emission in optically active semiconductors.
There's two main pixel types in the library - the CRGB class and the CHSV class. CHSV objects have to be converted to CRGB objects before they can be written out. You can also write CHSV objects into ...