Files
linux-voice-assistant/linux_voice_assistant/led_controller_hal.py
T
imonlinux 081ebd4103 Add HAL and Marvin
Files specifically configured for my personal use cases of a HAL-9000 and Marvin voice assistants.
2025-10-11 16:15:00 -07:00

137 lines
4.6 KiB
Python

import asyncio
import logging
from typing import Any, Tuple
import board
import adafruit_dotstar
from .event_bus import EventHandler, subscribe
_LOGGER = logging.getLogger(__name__)
# --- HAL-9000 Theme Constants ---
NUM_LEDS = 1
_OFF = (0, 0, 0)
_RED = (255, 0, 0)
_GREEN = (0, 255, 0) # Kept for initial startup blink
class LedController(EventHandler):
def __init__(
self,
state,
interface: str = "spi",
clock_pin: int = 13,
data_pin: int = 12,
):
super().__init__(state)
self.loop = state.loop
self.current_task = None
self._is_ready = False
try:
if interface == "gpio":
_LOGGER.debug(f"Initializing LEDs on GPIO data={data_pin}, clock={clock_pin}")
data_pin_obj = getattr(board, f"D{data_pin}")
clock_pin_obj = getattr(board, f"D{clock_pin}")
self.leds = adafruit_dotstar.DotStar(
clock_pin_obj, data_pin_obj, NUM_LEDS, brightness=0.5, auto_write=False
)
else: # Default to SPI
_LOGGER.debug("Initializing LEDs on hardware SPI")
self.leds = adafruit_dotstar.DotStar(
board.SCLK, board.MOSI, NUM_LEDS, brightness=0.5, auto_write=False
)
self._is_ready = True
_LOGGER.info(f"LED Controller initialized using {interface} interface.")
# Signal that the system is ready
self.run_action("blink", _GREEN, 2)
except Exception:
_LOGGER.exception("Failed to initialize LED controller. LEDs will be disabled.")
def run_action(self, action_method_name: str, *args: Any) -> None:
if not self._is_ready:
return
if self.current_task and not self.current_task.done():
self.current_task.cancel()
coro = getattr(self, action_method_name)(*args)
self.current_task = asyncio.run_coroutine_threadsafe(coro, self.loop)
async def color(self, rgb: Tuple[int, int, int]):
if not self._is_ready:
return
self.leds.fill(rgb)
self.leds.show()
async def blink(self, color, count=3):
for _ in range(count):
await self.color(color)
await asyncio.sleep(0.2)
await self.color(_OFF)
await asyncio.sleep(0.2)
async def pulse(self, color: Tuple[int, int, int], speed: float = 0.015):
try:
r, g, b = color
while True:
for i in range(0, 101, 5):
brightness = i / 100.0
await self.color((int(r * brightness), int(g * brightness), int(b * brightness)))
await asyncio.sleep(speed)
for i in range(100, -1, -5):
brightness = i / 100.0
await self.color((int(r * brightness), int(g * brightness), int(b * brightness)))
await asyncio.sleep(speed)
except asyncio.CancelledError:
await self.color(_OFF)
async def fast_pulse(self, color: Tuple[int, int, int], speed: float = 0.008):
"""Faster version of the pulse animation."""
try:
r, g, b = color
while True:
for i in range(0, 101, 10):
brightness = i / 100.0
await self.color((int(r * brightness), int(g * brightness), int(b * brightness)))
await asyncio.sleep(speed)
for i in range(100, -1, -10):
brightness = i / 100.0
await self.color((int(r * brightness), int(g * brightness), int(b * brightness)))
await asyncio.sleep(speed)
except asyncio.CancelledError:
await self.color(_OFF)
# --- EVENT HANDLERS FOR HAL-9000 ---
@subscribe
def ha_connected(self, data: dict):
_LOGGER.debug("HA Connected, setting idle LED state.")
self.voice_run_end(data)
@subscribe
def voice_wakeword(self, data: dict):
self.run_action("pulse", _RED)
@subscribe
def voice_stt_start(self, data: dict):
self.run_action("pulse", _RED)
@subscribe
def voice_vad_start(self, data: dict):
pass # Continues pulsing red
@subscribe
def voice_stt_end(self, data: dict):
self.run_action("fast_pulse", _RED)
@subscribe
def voice_tts_start(self, data: dict):
self.run_action("pulse", _RED)
@subscribe
def voice_run_end(self, data: dict):
self.run_action("color", _RED) # Idle state is solid red