LED Strip

WS2812 NeoPixel Compatible LED Strip

WS2812 NeoPixel Compatible LED Strip.

Pin names

VDD · pin

Positive voltage supply (input side)

DIN · pin

Data input signal

VSS · pin

Ground (input side)

VDD.2 · pin

Positive voltage supply (output side)

DOUT · pin

Data output (for chaining to next strip)

VSS.2 · pin

Ground (output side)

Attributes

pixels · string · default: "8"

Number of LEDs in the strip

pixelShape · string · default: ""

Pixel rendering shape: “square”, “circle”, or "" (smooth rendering)

pixelSize · string · default: "5050"

LED package size: “5050”, “3535”, or “2020”

Chaining

You can chain multiple strips together by connecting the DOUT pin of one strip to the DIN pin of the next strip. All LEDs share the same data line and are addressed sequentially.

Pixel rendering

Shape

Set the pixelShape attribute to control how each LED is rendered:

• "" (default) - Smooth rendering (one pixel per LED, scaled up)
• "square" - Square pixel rendering
• "circle" - Circular pixel rendering

Size

Set the pixelSize attribute to match real-world LED package dimensions:

Value	Package	Pixel size
"5050"	5×5 mm	23 px
"3535"	3.5×3.5 mm	16 px
"2020"	2×2 mm	9 px

Arduino code example

#include <Adafruit_NeoPixel.h>

#define STRIP_PIN 2
#define NUM_PIXELS 8

Adafruit_NeoPixel strip(NUM_PIXELS, STRIP_PIN, NEO_GRB + NEO_KHZ800);

void setup() {
  strip.begin();
  for (int i = 0; i < NUM_PIXELS; i++) {
    strip.setPixelColor(i, strip.Color(150, 0, 0)); // Red
  }
  strip.show();
}

void loop() {
  delay(10);
}

See also

• wokwi-led-matrix - WS2812 NeoPixel Compatible LED Matrix
• wokwi-led-ring - WS2812 NeoPixel Compatible LED Ring

Simulator examples

• NeoPixel LED Strip