Omar SobhandClaude Opus 4.8
62c435c648
Vendors the fork's 11 granular UNO Q skills (bridge, flashing, led-matrix, uno-q-hardware, sketch-patterns, modulino, linux-led, audio, vision, wireless, arduino-app-lab) next to the comprehensive arduino-uno-q skill, and installs the whole set into every agent's workspace on each board. Why both: the comprehensive skill is the rich cloud reference (read_skill → references); the granular skills are keyword-triggered and match the fork's eager skill-inliner rules, so the on-board Qwen auto-inlines them (no read_skill round-trip). flashing + led-matrix carry the exact uno_q_flash + frame-API / ArduinoGraphics-not-installed detail that makes flashing reliable. - push-skill.sh generalized: a single skill dir (has SKILL.md) OR a parent dir installs every skill under it; provision-fleet now ships all of skills/. - Verified on board 65301572: cloud/Sonnet-5 lists all 12 skills. Co-Authored-By: Claude Opus 4.8 <[email protected]>
31 lines
1.3 KiB
Markdown
31 lines
1.3 KiB
Markdown
---
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name: linux-led
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description: The Arduino Uno Q's MPU-side RGB LEDs, driven from Linux via /sys/class/leds (active-low). Load this to control the on-board Linux LEDs, as opposed to LEDs wired to Arduino pins.
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---
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# Linux-side RGB LEDs (MPU)
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The Uno Q has RGB LEDs owned by the **MPU (Linux)**, exposed under
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`/sys/class/leds/*` (e.g. `red:user`, `green:user`, `blue:bt`). These are separate
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from the MCU-owned LEDs you drive with `digitalWrite`/`analogWrite` in a sketch.
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## Use the `sysfs_led` tool
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- `action=list` — enumerate available LEDs.
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- `action=set`, `led=<name>`, `brightness=0..255` — set brightness in **natural
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sense** (0 = off, 255 = full). The tool handles the active-low inversion and
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scales to each LED's `max_brightness` for you.
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## Under the hood
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The LEDs are **active-low**: writing `0` to `<led>/brightness` turns it fully ON,
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`max_brightness` turns it OFF. `sysfs_led` inverts your natural-sense value so you
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never have to think about it.
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## Which LED tool to use
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- On-board **Linux** RGB LEDs → `sysfs_led` (this skill).
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- LEDs wired to **Arduino pins**, or the built-in D13 → flash a sketch with
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`uno_q_flash`, or toggle via `gpio_write` on a running sketch.
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- The 13×8 blue **LED matrix** → the `led-matrix` skill (it's an MCU device).
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