jiggly/CHANGELOG.md

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

Added

• hsmc 0.5.1 statechart drives the entire device lifecycle. The control flow (boot → wake-up animation → settle → running animation → active jiggle/flash → end-of-day shutdown spiral → power-down) is expressed declaratively in one statechart! block; no more atomic flags, no more per-tick Phase enum, no hand-rolled main loop.
• Mouse animations driven by the chart's during: activities:
  • Wake-up (WakingDisplay): 10 frantic horizontal sin-shaped sweeps (~12 Hz, ±60 px, ~640 ms) — simulates "shake the mouse to wake the display."
  • Running (ShowingRunning): 3 quick clockwise circles (radius 40 px, ~600 ms) — universal "spinner / in progress" cue.
  • Pre-shutdown (Ending → ShutdownAnim): inward spiral 50 → 5 px over 3 turns (~2 s), 30 s before lifetime end — cursor visibly winds down.
• 2 s Settling state between wake-up and running animations so the display has time to come out of sleep before the spinner draws.
• All animations carry sub-pixel residue forward across i8 HID delta reports so the rendered shape matches the intended geometry rather than losing ~half its motion to truncation.

Changed

• RUN_DURATION from 8 hours to 3 h 50 m. Math-optimal under the user's workday distribution (start triangular(8.0, mode=8.5, 9.5), lunch 12:00–13:00, end triangular(16.0, mode=17.5, 19.0)) for "screen goes to sleep during the lunch hour on most days." See /tmp/jiggly_runtime_v3.py for the simulation.
• HID poll_ms 60 → 8 (125 Hz). At the previous 60 ms poll the host was discarding ~7 of every 8 animation frames the firmware emitted.
• Boot LED R→G→B step 180 ms → 60 ms; 1.5 s pre-animation USB-settle delay removed. Reset → wake-shake latency dropped from ~2 s to ~240 ms.
• Watchdog feeding moved out of the imperative main loop into its own #[embassy_executor::task]; the chart owns user-visible state, the watchdog task owns the periodic kick.
• USB descriptor unchanged (still spoofs Logitech G502 VID 0x046d / PID 0xc07d).

Removed

• JIGGLE_FLAG: AtomicBool and all swap/store calls.
• Phase enum and the per-tick phase_for(remaining) switch — the breathing color is now read directly from elapsed time inside the breathe_color during:.
• led_task and sleep_chunked helper — both subsumed by the chart.
• RUN_DURATION = Duration::from_secs(8 * 60 * 60) and similar raw-integer-millisecond constants. All timing is now Duration-typed with named constructors (from_hours, from_mins, from_millis).

0.1.0 - 2026-04-27

Added

• Initial Embassy-based no_std firmware for the Seeed Studio Xiao RP2040.
• USB HID Boot Mouse, masquerading as a Dell MS116 (VID 0x413c, PID 0x301a).
• Jiggle pattern: pick a random axis from the RP2040 ROSC RANDOMBIT, nudge +1 px, dwell 25 ms, nudge −1 px, then sleep 4.5 minutes before the next cycle.
• 8-hour workday window after boot or RESET (R) press, then silent idle (watchdog still fed) until the next manual reset.
• 8-second hardware watchdog, fed in 5-second chunks during long sleeps.
• mise.toml pinning rust 1.95.0 with explicit components (cargo, clippy, llvm-tools, rust-src, rust-std, rustc, rustfmt) and the thumbv6m-none-eabi target, plus cargo helpers (cargo-binutils, uf2conv, cargo-watch, cargo-bloat, cargo-expand).
• justfile recipes for build, release, check, clippy, fmt, lint, ci, bin, uf2, flash, size, bloat, expand, and bootstrap. All recipes execute inside mise exec -- sh -eu -c so the pinned toolchain is used regardless of shell activation state.