====== LED ======

{{ :neonking:leds.jpg?direct&350|}}

===== Introduction =====

LED is an industry acronym for **Light Emitting Diode**. These are usually small little "bulbs" that glow in different colors when they are "turned on" 

//(most common colors are red, green,yellow, blue or white) // 



===== RGB LEDs =====

RGB (Red Green Blue) or multicolor LEDs can be serial driven by a core32. Some tests have already been made with  **WS2812 ( APA106 )** LEDs  and a core STM32 through J4B Pin.

<wrap tip>Original Forum Thread here: [[http://midibox.org/forums/topic/19752-rgb-hue-sweep/|RGB LEDs]]</wrap>


===== White / Blue LEDs issue =====

It has been proven recently that the use of **high brightness White and Blue LEDs are not good to human sight**. The output light spectrum for these LEDs is some harsh for the eye. You should prefer using other colors LEDs or not using them too much.

=====LED Matrix=====

{{ ::neonking:ledmatrix.jpg?direct&600 |}}