raven/merlin/config.py
pyr0ball 451b7ee341 feat: hardware BOM + fix critical daemon bugs (gaze dead code, FIST mapping)
- Add hardware/ directory structure (cad, cam, parts, sim, docs)
- Add hardware/bom/merlin-bci-rev0.csv — ADS1299 + ESP32-WROOM-32E full BOM
  with passive values for 8-ch EEG front-end, isolated ±5V supply, WiFi streaming
- Fix: wire gaze_est.estimate(face) into camera loop (was instantiated but never called)
- Fix: add fist, gaze_left/right/up/down to DEFAULT_MAPPINGS
- Add: ActionExecutor.backend property (replace _backend direct access in /status)
- Add: scroll_left/right, key_ctrl_z/c/v to xdotool + pyautogui backends
2026-04-26 21:38:21 -07:00

61 lines
1.8 KiB
Python

"""
MerlinConfig — load and save user gesture-to-action mappings.
Config file: ~/.merlin/config.yaml
If the file does not exist, defaults are used and written on first save.
"""
from __future__ import annotations
from dataclasses import dataclass, field, asdict
from pathlib import Path
from typing import Optional
import yaml
CONFIG_PATH = Path.home() / ".merlin" / "config.yaml"
DEFAULT_MAPPINGS: dict[str, str] = {
"left_blink": "left_click",
"right_blink": "right_click",
"both_blink": "double_click",
"head_nod": "key_enter",
"head_shake": "key_escape",
"head_tilt_left": "scroll_up",
"head_tilt_right": "scroll_down",
"open_palm": "key_space",
"pinch": "drag_start",
"fist": "key_ctrl_z",
"gaze_left": "scroll_left",
"gaze_right": "scroll_right",
"gaze_up": "scroll_up",
"gaze_down": "scroll_down",
}
@dataclass
class MerlinConfig:
mappings: dict[str, str] = field(default_factory=lambda: dict(DEFAULT_MAPPINGS))
confidence_threshold: float = 0.80
camera_device: int = 0
dwell_ms: int = 800
blink_threshold: float = 0.20
@classmethod
def load(cls, path: Path = CONFIG_PATH) -> MerlinConfig:
if not path.exists():
return cls()
with path.open() as f:
data = yaml.safe_load(f) or {}
return cls(
mappings=data.get("mappings", DEFAULT_MAPPINGS),
confidence_threshold=float(data.get("confidence_threshold", 0.80)),
camera_device=int(data.get("camera_device", 0)),
dwell_ms=int(data.get("dwell_ms", 800)),
blink_threshold=float(data.get("blink_threshold", 0.20)),
)
def save(self, path: Path = CONFIG_PATH) -> None:
path.parent.mkdir(parents=True, exist_ok=True)
with path.open("w") as f:
yaml.safe_dump(asdict(self), f, default_flow_style=False)