Each LED (Light-Emitting Diode) in an RGB (Red Green Blue) LED strip or ring is individually addressed using only one microcontroller pin for all the LEDs in the strip or ring. The term WS2812 5050 RGB LED refers to a strip or ring consisting of RGB LEDs with a WS2812 controller chip incorporated in each LED, and 5050 refers to the LED dimensions of 5.0 × 5.0 mm. NeoPixel is the Adafruit brand name for individually addressable RGB LEDs.
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