SK6812 Addressable LED

Name: SK6812 Addressable LED
Brand: Worldsemi
Availability: InStock

SK6812

Worldsemiinterface io display

The SK6812 is an intelligent RGB LED with an integrated control IC in a 5050 package. Each pixel uses a single-wire data protocol with built-in constant-current drive and can be cascaded for addressable strings.

Manufacturer datasheet

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In stock

Specifications

Operating Voltage: 4.5 to 5.5 V
Supply Current: 1 mA
Interface: Single-wire NRZ
Data Transmission Rate: 800 kHz
Gray Scale: 256 levels per channel
Operating Temperature Range: -40 to 85 °C
Package Types: SMD 5050

Pinout

Pin	Name	Functions	Notes
1	VSS	GND	Ground for signal and power supply
2	DIN	GPIO	Control signal data input
3	VDD	POWER	Power supply pin
4	DOUT	GPIO	Control signal data output to next cascaded pixel

Interactive pinout

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SK6812

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Starter code

Community starter examples — minimal, unofficial, and provided to get you wiring fast. Verify against the manufacturer datasheet before relying on them.

Arduino (C++)

Arduino library: Adafruit NeoPixel

arduino

// SK6812 RGBW addressable LEDs — community starter example
#include <Adafruit_NeoPixel.h>

#if defined(ESP32)
  #define LED_PIN 5
#else
  #define LED_PIN 6
#endif
#define NUM_LEDS 8

// SK6812 is often RGBW (4 bytes/LED) — use NEO_GRBW; plain RGB SK6812 -> NEO_GRB
Adafruit_NeoPixel strip(NUM_LEDS, LED_PIN, NEO_GRBW + NEO_KHZ800);

void setup() {
  strip.begin();
  strip.setBrightness(60);
  strip.show();
}

void loop() {
  for (int i = 0; i < NUM_LEDS; i++) {
    strip.setPixelColor(i, strip.Color(0, 150, 0, 0));   // green
    strip.show();
    delay(80);
  }
  for (int i = 0; i < NUM_LEDS; i++) strip.setPixelColor(i, 0);
  strip.show();
  delay(300);
}

MicroPython

python

# SK6812 RGBW (ESP32) — community starter example
# uses the built-in `neopixel` module (bpp=4 for RGBW)
from machine import Pin
import neopixel, time

NUM = 8
np = neopixel.NeoPixel(Pin(5), NUM, bpp=4)   # DIN on GPIO5, RGBW

while True:
    for i in range(NUM):
        np[i] = (0, 60, 0, 0)
        np.write()
        time.sleep_ms(80)
    for i in range(NUM):
        np[i] = (0, 0, 0, 0)
    np.write()
    time.sleep_ms(300)

Wiring

Pin	Arduino Uno R3	ESP32 DevKitC (WROOM-32)	Notes
VDD	+5V	5V	5 V; ~80 mA per LED at full white (RGBW)
VSS	GND	GND	Common ground with the board
DIN	D6	GPIO5	Data in; ~330 ohm series resistor

Typical uses

RGBW addressable lighting (true white channel)
Signage and ambient lighting