Behavioural mixed-signal modelWS2812Bws2812_strip
WS2812B LED strip (NeoPixel)
Addressable RGB LEDs (WS2812B / NeoPixel) at 5 V: the single-wire protocol (800 kbit/s, 24 bits GRB per LED) is decoded from the level on DIN, the colors appear live in the schematic. Drive e.g. with Adafruit_NeoPixel from the Pico (PIO) or Arduino.
Key data
- Category
- Semiconductors
- Simulation model
- Behavioural mixed-signal model
- Manufacturer part number
- WS2812B
- Reference prefix
- LED
- Pins
- 3
- Land pattern
- PinHeader_1x03_P2.54mm_Vertical
Simulation model
A behavioural model implements the interface of the chip (registers, protocol, timing) at its pins. The pins are connected to the analog circuit like CMOS pins.
- Model
- ws2812
- Supply pins
- VDD / GND
Pins 3
| Pin | Name | Use |
|---|---|---|
| VDD | 5VSupply pin | Supply 5 V: about 60 mA per LED at full white, 1000 µF across the supply |
| GND | GNDGround pin | Ground |
| DIN | DINInput pin | Data in: 300–500 Ω series resistor from the microcontroller pin |
Parameters 1
LEDs
countDefault8
Number of LEDs in the strip (1–256)
PCB
Connector / off-board
PinHeader_1x03_P2.54mm_VerticalLED strip off-board on a 3-pin header (5V, DIN, GND)