LED Control

Quick Start

Control the device's RGB light directly. Use this skill only when the user requests a specific color, effect, or to turn LEDs off.

Workflow

1. Determine the user's intent:
   • Specific color -> [HW:/led/solid:{"color":[R,G,B]}]
   • Two or more colors / mix / gradient -> [HW:/led/paint:{"colors":[[R,G,B],[R,G,B]],"gradient":true}]
   • Effect -> [HW:/led/effect:{"effect":"name","color":[R,G,B],"speed":1.0}]
   • Turn off -> [HW:/led/off:{}]
2. Place markers at start of reply — the device fires them in order before TTS
3. Confirm the action to the user

Examples

Input: "Make it purple" / "turn on purple" Output: [HW:/led/solid:{"color":[100,50,200]}] I've set the LEDs to purple.

Input: "Turn on yellow light" / "set yellow" / "switch to yellow" / "yellow light" Output: [HW:/led/solid:{"color":[255,220,0]}] Yellow light on!

Input: "Turn on red light" / "set red" / "switch to red" / "red light" Output: [HW:/led/solid:{"color":[255,0,0]}] Red light on!

Input: "Turn on white light" / "set white" / "white light" Output: [HW:/led/solid:{"color":[255,255,255]}] White light on!

Input: "Change to cyan purple" / "mix blue and pink" / "gradient from red to orange" Output: [HW:/led/paint:{"colors":[[0,200,200],[150,0,255]],"gradient":true}] Cyan-to-purple gradient on!

Input: "Do a breathing light with warm color" Output: [HW:/led/effect:{"effect":"breathing","color":[255,180,100],"speed":0.5}] Breathing effect started with a warm glow.

Input: "Rainbow mode!" Output: [HW:/led/effect:{"effect":"rainbow","speed":1.0}] Rainbow effect is running!

Input: "Turn off the lights" Output: [HW:/led/off:{}] LEDs are off.

Input: "I want to relax" / "reading mode" / "goodnight" Output: Do NOT use this skill. Use Scene skill instead.

Input: Conversational reply needing emotion Output: Do NOT use this skill. Use Emotion skill instead.

How to Control LEDs

No exec/curl needed. Use inline markers at start of reply — the device fires them in order:

Solid color (automatically stops the current effect)

[HW:/led/solid:{"color":[255,220,0]}] Yellow light on!

Color is an RGB array [R, G, B].

Multi-color / gradient (automatically stops the current effect)

[HW:/led/paint:{"colors":[[0,200,200],[150,0,255]],"gradient":true}] Cyan-to-purple gradient!

• colors: list of RGB gradient stops (2+ colors), blended smoothly across the whole strip
• gradient: true is REQUIRED — without it the colors paint only the first N pixels and the rest of the strip keeps its old color
• Works with 3+ stops too: {"colors":[[255,0,0],[255,220,0],[0,200,80]],"gradient":true} = red -> yellow -> green

Effect

[HW:/led/effect:{"effect":"breathing","color":[255,180,100],"speed":0.5}] Breathing warm glow.

• effect (required): effect name from table below
• color (optional): RGB array
• speed (optional): 0.1 (slow) to 5.0 (fast), default 1.0
• duration_ms (optional): auto-stop after N ms

Turn off / stop effect

[HW:/led/off:{}] LEDs off.
[HW:/led/effect/stop:{}]

Available effects

Color suggestions

Error Handling

• If the API returns an error or is unreachable, inform the user: "I couldn't control the LEDs right now. The hardware service may be unavailable."
• If the user requests an unknown effect name, pick the closest match from the available effects table or tell the user which effects are available.

Rules

• ALWAYS include the JSON body, even for no-argument commands. Every marker is [HW:/path:{...}] — for commands that take no arguments the body is the empty object {}. Emit [HW:/led/off:{}] and [HW:/led/effect/stop:{}], NEVER the bodyless [HW:/led/off] or [HW:/led/effect/stop]. A marker without :{...} is malformed and the device silently drops it — the light will NOT turn off.
• The marker is NOT a markdown link. Never wrap it as [some text](HW:/led/off:{}) — emit the plain marker [HW:/led/off:{}] followed by your sentence as normal text.
• "Turn on color X" / "set light X" / "change color X" = THIS skill. Any request naming a color (yellow, red, green, purple, white, orange, pink…) routes here — NOT to Emotion or Scene. Emotion yellow/happy is for YOUR feelings, not user's lighting request.
• NEVER use /led-color or /led/color for setting color — these endpoints do NOT exist. Always use [HW:/led/solid:{"color":[R,G,B]}].
• Two or more colors at once = /led/paint with "gradient":true. /led/solid takes exactly ONE color — never try to express "cyan purple" as a single blended RGB; paint a gradient instead.
• Solid and paint stop effects automatically. Their HAL endpoints stop the running effect before updating the strip; do not add a separate stop marker. Keep /led/effect/stop for an explicit stop-only request.
• Solid colors = full brightness. For dim/ambient lighting, use the Scene skill instead.
• Effects run until stopped (unless duration_ms is set). Starting a new effect auto-stops the previous one.
• /led/off also stops any running effect.
• For "make it cozy" or "candle light" -> use candle effect, NOT a static orange color.
• For "breathing" or "pulsing" requests -> use the matching effect.
• Combine effects with low speed (0.3-0.5) for calm moods, high speed (2.0-3.0) for energy.
• Do NOT use for activity/ambiance lighting (sleeping, relaxing, reading, focus, movie) -> use Scene skill.
• Do NOT use for expressing emotion -> use Emotion skill.

Output Template

[HW:/led/solid:{"color":[100,50,200]}] Purple light on.

Examples:

• [HW:/led/solid:{"color":[100,50,200]}] Purple light on.
• [HW:/led/effect:{"effect":"breathing","color":[255,180,100],"speed":0.5}] Warm breathing light on.
• [HW:/led/off:{}] Lights off.