home_assistant/README.md

# Home Assistant

Scripts and config for managing WLED at `192.168.240.30`.

## WLED scripts

Python 3, no extra deps (stdlib only).

### Pull (read state/config from WLED)

```bash
# Full snapshot (state + info + effects + palettes)
python wled_pull.py

# Just state, info, or config
python wled_pull.py state
python wled_pull.py info
python wled_pull.py cfg

# Save to file
python wled_pull.py --save wled_config/backup.json
python wled_pull.py full -o wled_config/full.json
```

### Push (send commands to WLED)

```bash
python wled_push.py --on
python wled_push.py --off
python wled_push.py --toggle
python wled_push.py --bri 128
python wled_push.py --preset 1
python wled_push.py --file wled_config/state.json
python wled_push.py --file wled_config/sunrise_8am.json
python wled_push.py --file wled_config/presets/sunrise.json   # save preset to device (psave)
```

Use `--host` to override the default `192.168.240.30`.

### Brightness and white channel

WLED has three separate level-style controls:

| Control | JSON | Description |
|--------|------|--------------|
| **Global brightness** | `state.bri` | Main dimmer for the whole light (0–255). When off, this is the brightness used when you turn on. |
| **Segment brightness** | `state.seg[].bri` | Per-segment brightness (0–255). Multiplies with the segment’s color/effect. |
| **White channel** | `state.seg[].col[0][3]` | The W in RGBW: primary color is `[R, G, B, W]`. White channel 0–255 (how much dedicated white is mixed in). |

**CLI:**

- `--bri N` — global brightness.
- `--seg-bri N` — segment 0 brightness.
- `--white N` — segment 0 primary color’s white channel (0–255). Use with Solid effect for predictable results.

```bash
python wled_push.py --on --bri 200           # global only
python wled_push.py --seg-bri 128            # dim segment 0 only
python wled_push.py --white 255              # full white channel (segment 0)
python wled_push.py --bri 255 --seg-bri 255 --white 255  # all full
```

### White vs warm light (CCT)

Your WLED device (**WLED-Gledopto** at `192.168.240.30`) supports **CCT** (color temperature). This controls the **warm vs cool** blend of the white output; the **white channel** (`--white`) controls how much white is mixed in (e.g. with RGB). In the API, segment `cct` uses a relative scale:

- **`cct: 0`** → warmest (warm white, ~2700 K)
- **`cct: 255`** → coolest (cool white, ~6500 K)

**Current state** (from your last pull): light **on**, brightness **254**, segment **0** with **Solid** effect (`fx: 0`), **CCT 0** (warm), primary color dim gray `[56,56,56,56]`.

**Set cool/white light:**

```bash
python wled_push.py --on --bri 255 --cct 255
# or from a JSON file:
python wled_push.py --file wled_config/white.json
```

**Set warm light:**

```bash
python wled_push.py --on --bri 255 --cct 0
# or:
python wled_push.py --file wled_config/warm.json
```

To only change color temperature and keep current on/off and brightness, use only `--cct`:

```bash
python wled_push.py --cct 255   # switch to cool white
python wled_push.py --cct 0     # switch to warm
```

### Config backup

`wled_config/` holds JSON pulled from the device: `full.json`, `state.json`, `info.json`. Use `wled_push.py --file wled_config/state.json` to restore state.

### Presets (define in JSON, push to device)

Presets are stored on the WLED device; you can **define** them in JSON and **push** once to create/update them. Use the WLED `psave` API: include `psave` (preset slot 1–250), optional `n` (name), `ib` (include brightness), and the state you want saved.

**Example — Sunrise preset** (warm white, Solid, for the 8am alarm):

```bash
python wled_push.py --file wled_config/presets/sunrise.json
```

That sends the payload in `wled_config/presets/sunrise.json` to the device. The device saves it as preset ID 1 named "Sunrise". Home Assistant can then use `select.wled_gledopto_preset` with option "Sunrise" in the sunrise alarm script.

- **full.json** is a snapshot from **pull** (state + info + effects + palettes). It does not define presets; use `wled_config/presets/*.json` for that.
- To add more presets: create a new JSON file with `psave`, `n`, and state, then run `wled_push.py --file path/to/preset.json`.

## Sunrise alarm

`wled_config/sunrise_8am.json` starts a 30-minute sunrise that finishes at `08:00`.

```bash
# Test the sunrise payload immediately
python wled_push.py --file wled_config/sunrise_8am.json

# Poll the local clock and trigger the sunrise daily
python sunrise_alarm.py

# Custom alarm time and duration
python sunrise_alarm.py --alarm 08:00 --duration 30
```