ferriswheel

RGB LED ring effects and animations — fully no_std, fully unit-testable.

Fourteen ring-specific effects (rainbow, pulse, breathe, spinner, meteor, twinkle, fire, cylon, knight rider, chase, flash, progress, section, rainbow comet) all behind a single Effect trait that renders into an &mut [RGB8] buffer. No hardware dependency — drop in any WS2812 driver, or use one of the sister driver crates from the workspace.

Part of the rustyfarian-ws2812 workspace alongside pennant (status-LED adapters) and bunting (WS2812 colour utilities).

Example

use ferriswheel::{Effect, RainbowEffect, RGB8};

let mut rainbow = RainbowEffect::new(12).unwrap();
let mut buffer = [RGB8::default(); 12];

rainbow.update(&mut buffer).unwrap();

Documentation

Full API docs at docs.rs/ferriswheel.

License

Dual-licensed under MIT or Apache-2.0.

Changelog

See the workspace CHANGELOG for release notes across all crates.