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]>
