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NeoPixel Reference

A single WS2812B addressable RGB LED, driven over one data line and chainable via DOUT.

Pin names

NameDescription
VDDPower (5V)
VSSGround
DINData In — connect to a GPIO pin
DOUTData Out — chain to the next pixel's DIN

Attributes

This component has no configurable attributes.

Usage

Connect VDD to 5V, VSS to GND, and DIN to a GPIO pin. Drive it with the Adafruit NeoPixel library.

#include <Adafruit_NeoPixel.h>

#define PIN        6
#define NUMPIXELS  1

Adafruit_NeoPixel pixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

void setup() {
  pixel.begin();
  pixel.setBrightness(100);
}

void loop() {
  uint32_t colors[] = {
    pixel.Color(255, 0,   0),   // red
    pixel.Color(0,   255, 0),   // green
    pixel.Color(0,   0,   255), // blue
    pixel.Color(255, 255, 0),   // yellow
  };
  for (auto c : colors) {
    pixel.setPixelColor(0, c);
    pixel.show();
    delay(600);
  }
}

Examples

DescriptionAttrs
Single pixel{}

See also

  • LED Ring — 16 NeoPixels pre-arranged in a ring
  • NeoPixel Matrix — NeoPixels arranged in a grid
  • RGB LED — discrete R/G/B LED requiring three separate GPIOs instead of one data line