94 lines
2.5 KiB
Python
94 lines
2.5 KiB
Python
"""Support for PCA 301 smart switch."""
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from __future__ import annotations
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import logging
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from typing import Any
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import pypca
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from serial import SerialException
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from homeassistant.components.switch import SwitchEntity
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from homeassistant.const import EVENT_HOMEASSISTANT_STOP
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from homeassistant.core import HomeAssistant
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from homeassistant.helpers.entity_platform import AddEntitiesCallback
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from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
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_LOGGER = logging.getLogger(__name__)
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DEFAULT_NAME = "PCA 301"
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def setup_platform(
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hass: HomeAssistant,
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config: ConfigType,
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add_entities: AddEntitiesCallback,
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discovery_info: DiscoveryInfoType | None = None,
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) -> None:
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"""Set up the PCA switch platform."""
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if discovery_info is None:
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return
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serial_device = discovery_info["device"]
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try:
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pca = pypca.PCA(serial_device)
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pca.open()
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entities = [SmartPlugSwitch(pca, device) for device in pca.get_devices()]
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add_entities(entities, True)
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except SerialException as exc:
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_LOGGER.warning("Unable to open serial port: %s", exc)
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return
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hass.bus.listen_once(EVENT_HOMEASSISTANT_STOP, pca.close)
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pca.start_scan()
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class SmartPlugSwitch(SwitchEntity):
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"""Representation of a PCA Smart Plug switch."""
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def __init__(self, pca, device_id):
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"""Initialize the switch."""
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self._device_id = device_id
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self._name = "PCA 301"
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self._state = None
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self._available = True
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self._pca = pca
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@property
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def name(self):
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"""Return the name of the Smart Plug, if any."""
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return self._name
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@property
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def available(self) -> bool:
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"""Return if switch is available."""
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return self._available
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@property
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def is_on(self):
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"""Return true if switch is on."""
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return self._state
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def turn_on(self, **kwargs: Any) -> None:
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"""Turn the switch on."""
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self._pca.turn_on(self._device_id)
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def turn_off(self, **kwargs: Any) -> None:
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"""Turn the switch off."""
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self._pca.turn_off(self._device_id)
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def update(self) -> None:
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"""Update the PCA switch's state."""
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try:
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self._state = self._pca.get_state(self._device_id)
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self._available = True
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except OSError as ex:
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if self._available:
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_LOGGER.warning("Could not read state for %s: %s", self.name, ex)
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self._available = False
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