Each LED has its own driver and passes data to the next, so a single pin controls all sixteen at 24-bit colour. Chain rings together for more. This is the part the Pico's programmable I/O was practically invented to drive.
Specifications
| LEDs | 16 x WS2812B |
| Colour depth | 24-bit (8 bits per channel) |
| Interface | Single-wire 800 kHz |
| Outer diameter | 44.5 mm |
| Operating voltage | 5 V |
| Peak current | 60 mA per LED at full white |
At full brightness sixteen LEDs draw nearly an amp - power the ring from 5 V directly, not from the board's regulator.
