90 lines
3.8 KiB
Markdown
90 lines
3.8 KiB
Markdown
# javis-slave
|
|
|
|
Satellite app for [Javis](../README.md). Runs on a tablet (designed for a
|
|
Surface Pro 7) **or headless on a Raspberry Pi**, listens for the wake word
|
|
locally, and sends recorded utterances to the Javis master over the LAN for
|
|
transcription, LLM reasoning and speech synthesis. The reply is shown on
|
|
screen (GUI mode) and played back through the device's speakers.
|
|
|
|
→ **Raspberry Pi guide:** [RASPBERRY_PI.md](RASPBERRY_PI.md)
|
|
|
|
## How it works
|
|
|
|
1. **Pairing** — On the master, open the **Devices** tab and click
|
|
*Generate pairing code*. On the slave, enter the master's IP, port and the
|
|
6-digit code (setup screen, or `--pair HOST:PORT CODE`). The master issues
|
|
a permanent per-device API key and the device appears in its Devices list.
|
|
2. **Room assignment** — In the master's Devices tab, type a room name for
|
|
the device (e.g. `Küche`) and click *Save room*. The slave picks it up on
|
|
its next config refresh; every utterance from this device is tagged
|
|
`[Room: Küche]` for the LLM.
|
|
3. **Wake word** — The slave uses the same openWakeWord model name the master
|
|
is configured with (sent during pairing / config refresh) and detects the
|
|
wake word fully locally. Built-in models ship with openWakeWord; a custom
|
|
model (e.g. `rufus`, see [docs/WAKE_WORD.md](../docs/WAKE_WORD.md)) is
|
|
downloaded from the master on first use. A short rising chime confirms
|
|
detection.
|
|
4. **Turns** — After the wake word, the utterance is recorded locally
|
|
(Silero VAD or RMS end-pointing), uploaded as WAV to `POST /api/v1/turn`,
|
|
and the master's reply text + synthesized speech are returned and played.
|
|
If the master's turn fails it returns its spoken error phrase instead, so a
|
|
screenless satellite still gets audible feedback; connection problems play
|
|
a low falling tone.
|
|
|
|
## Setup
|
|
|
|
This folder is fully standalone — it can be copied on its own to a
|
|
satellite device without the rest of the Javis repo. It vendors its own small
|
|
copy of the audio stack (`javis_slave/audio_io/`), so there's no cross-project
|
|
dependency.
|
|
|
|
On the **master** (`config.yaml`):
|
|
|
|
```yaml
|
|
api:
|
|
enabled: true
|
|
host: 0.0.0.0
|
|
port: 8765
|
|
```
|
|
|
|
On the **slave**:
|
|
|
|
```bat
|
|
run.bat :: Windows tablet (installs the GUI extra)
|
|
```
|
|
|
|
```bash
|
|
./run.sh # Linux with display
|
|
JAVIS_SLAVE_HEADLESS=1 ./run.sh --headless # Linux without display
|
|
sudo ./setup-pi.sh # Raspberry Pi: apt deps + venv + systemd service
|
|
```
|
|
|
|
The first run creates `.venv` and installs the dependencies declared in
|
|
`pyproject.toml`. Optional extras: `gui` (PySide6/qasync, needed for the
|
|
window) and `vad` (silero-vad + PyTorch; without it an RMS energy gate is used).
|
|
|
|
### Command line
|
|
|
|
```
|
|
javis-slave touch GUI
|
|
javis-slave --fullscreen | --kiosk fullscreen / fullscreen + hidden cursor
|
|
javis-slave --headless no window (services, Pi)
|
|
javis-slave --pair 192.168.1.10:8765 123456 --name Kueche
|
|
javis-slave --list-devices show mic/speaker indices
|
|
javis-slave --input-device 1 --output-device 0 --input-gain 1.5 --api-port 8766
|
|
```
|
|
|
|
Settings are stored in `%LOCALAPPDATA%\JavisSlave\slave_config.json`
|
|
(Windows) or `~/.javis-slave/slave_config.json` (Linux); override the folder
|
|
with `JAVIS_SLAVE_CONFIG_DIR`. A rotating log is written to `<config dir>/logs/slave.log`.
|
|
|
|
## Notes
|
|
|
|
- Transport is plain HTTP — use on a trusted LAN only.
|
|
- Microphones/speakers that don't support 16 kHz are opened at their native
|
|
rate and resampled automatically (common for USB audio on Linux).
|
|
- System control endpoints (volume / brightness / power, see
|
|
[javis-slave-mcp](../javis-slave-mcp/README.md)) work on Windows (pycaw,
|
|
screen-brightness-control) and Linux (`pactl`/`amixer`, `/sys/class/backlight`,
|
|
`systemctl`).
|