- flash-sketch.sh: compile + flash a sketch dir onto a board's MCU over adb
(push → arduino-cli compile with TMPDIR=/tmp → arduino-flash @ 0x80F0000).
Defaults to sketches/matrix_rain; includes a fleet loop over adb devices.
DRYs up the recipe and makes "set the board default" one command.
- Designate matrix_rain as the boot animation boards ship with (the flashed
MCU sketch persists across power cycles). Documented in the sketches README
+ parent Files list.
Flashed matrix_rain to the board via the helper (821 bytes, verified E2E).
Co-Authored-By: Claude Opus 4.8 <[email protected]>
Rounds out the sampler with the remaining effects:
- bloom — a filled diamond grows from the centre to full, then collapses.
- breathe — a dithered shimmer that swells and fades (density ramp via a
fixed per-pixel threshold, since the matrix can't truly fade).
- checker — a checkerboard that inverts on each beat.
Full cycle is now rain -> knight-rider -> comet -> ripple -> bloom ->
breathe -> sparkle -> checker -> wipe. Compiled + flashed E2E (2057 bytes).
Co-Authored-By: Claude Opus 4.8 <[email protected]>
A pixel that bounces off the walls trailing its last 5 cells (a diagonal
streak that bends on each bounce). Wired into the cycle between the
knight-rider sweep and ripple. Compiled + flashed E2E (1637 bytes).
Co-Authored-By: Claude Opus 4.8 <[email protected]>
There was only a scroll-text template; add frame-based animations for the
Uno Q's built-in 13x8 monochrome-blue matrix. Both compiled (arduino:zephyr
0.51.0) and flashed E2E on hardware (OpenOCD @ 0x80F0000, per boards.txt).
- matrix_rain/ — digital rain: staggered per-column drops + trails.
- matrix_effects/ — sampler cycling rain / knight-rider / ripple / sparkle
/ wipe.
- README: the grid->uint32[4] packing pattern (row-major, MSB-first), how to
add an effect, and the compile/flash recipe (TMPDIR=/tmp trap + the correct
0x80F0000 address vs QClaw's stale 0x8100000).
Note: the matrix is physically blue + on/off only — no colour/brightness in
software.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
