For supporting the development of smart LED luminaires with visible light communication (VLC) and indoor positioning systems, On Semiconductors has introduced two new LED drivers, namely NCL31000 and NCL31001.
The WS2812B Addressable RGB LED is extremely flexible, easy-to-use, and can be controlled separately. These LEDs are equipped with an integrated driver that allows users to control the color and brightness of each LED independently.
The IR LED or Infrared LED has polarity i.e.it has a positive and negative pin. The pin which is long is the positive pin (anode) and the pin which is short is the negative pin (cathode) as shown in the above IR LED pinout.