WS2812B LED Ring (12 LEDs)
A circular WS2812B LED ring with 12 individually addressable RGB LEDs (NeoPixel-compatible). Each LED gives 24-bit colour control and the ring is daisy-chainable. Used in Workshop 02 - Epoch Clock.
Features
- 12 WS2812B addressable RGB LEDs in a circle
- 24-bit colour depth (16.7 million colours)
- Single-wire data interface (DIN / DOUT)
- 5V operation (3.3V logic compatible)
- Cascadable via DOUT
- Refresh rate up to 800 Hz
- No external resistors needed
- Perfect for circular displays and progress indicators
Current draw warning
At full white, each LED can draw up to 60 mA. A 12-LED ring at full white can draw 720 mA - more than most USB ports can supply. Run at low brightness when on USB power, or use an external 5V supply rated for ≥ 1 A. Full safety guidance is in Workshop 02 - Epoch Clock.
Resources
- WS2812B datasheet
- Adafruit NeoPixel library
- FastLED library - alternate library, more performant for large arrays.
- Adafruit NeoPixel Überguide
Where to buy
Adapted from the CardanoThings project, originally produced under Project Catalyst Fund 11. Source: github.com/CardanoThings.