- Adds an in-repo `tuning/` crate that solves the four-knob LED-threshold
tuning problem as a 4-objective Pareto search using published
`heuropt` 0.8 (NSGA-III + a-posteriori weighted ranking), replacing
`scripts/tune_runtime.py`'s single-composite-score grid. `just tune`
runs it; the crate is its own workspace root with a local
`.cargo/config.toml` overriding the firmware's inherited
`thumbv6m-none-eabi` build target so it can use `std`.
- Retunes the shipping defaults from the new Pareto front:
`RUN_DURATION` 4h00m → 3h51m, `YELLOW_AT` 30 → 22, `RED_AT` 25 → 11,
`FAST_RED_AT` 20 → 4 (LED thresholds in minutes-remaining). Across
1,000 simulated workdays the new combination averages 26 minutes of
lunch sleep and lands in the 12:15–12:45 sweet spot on ~57 % of days,
with zero mean work-time failure and ~2 min/day of after-hours waste.
- Bumps `config.device_release` 0x0200 → 0x0300 to match firmware
version 0.3.0.
- README "Why four hours…" → "Why these timings…", rewritten for the
new methodology with the actual run statistics. `src/config.rs`
module-level + lifecycle/phase comments updated accordingly.
- Picks up a small `cargo fmt` drift in `src/chart.rs` and `src/led.rs`
that had crept in under the 0.2.0 module split.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Embassy-based no_std firmware for the Seeed Studio Xiao RP2040 that
masquerades as a Dell MS116 USB HID Boot Mouse. Each cycle picks a
random axis from the RP2040 ROSC RANDOMBIT register, nudges +1 px,
dwells 25 ms, nudges -1 px, then sleeps 4.5 minutes. After 8 hours
elapsed from boot or RESET press the device idles silently (watchdog
still fed) until the user taps RESET (R) again, aligning a single
press with one workday.
Tooling:
- mise.toml pins rust 1.95.0 with explicit components and the
thumbv6m-none-eabi target, plus cargo-binutils / uf2conv helpers.
- justfile shell is set to "mise exec -- sh -eu -c" so every recipe
uses the pinned toolchain without any shell activation.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
swaitsandClaude Opus 4.7