core/homeassistant/components/sensor/qwikswitch.py

70 lines
2.0 KiB
Python

"""
Support for Qwikswitch Sensors.
For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/sensor.qwikswitch/
"""
import logging
from homeassistant.components.qwikswitch import DOMAIN as QWIKSWITCH
from homeassistant.helpers.entity import Entity
DEPENDENCIES = [QWIKSWITCH]
_LOGGER = logging.getLogger(__name__)
async def async_setup_platform(hass, _, add_devices, discovery_info=None):
"""Add lights from the main Qwikswitch component."""
if discovery_info is None:
return
qsusb = hass.data[QWIKSWITCH]
_LOGGER.debug("Setup qwikswitch.sensor %s, %s", qsusb, discovery_info)
devs = [QSSensor(name, qsid)
for name, qsid in discovery_info[QWIKSWITCH].items()]
add_devices(devs)
class QSSensor(Entity):
"""Sensor based on a Qwikswitch relay/dimmer module."""
_val = {}
def __init__(self, sensor_name, sensor_id):
"""Initialize the sensor."""
self._name = sensor_name
self.qsid = sensor_id
def update_packet(self, packet):
"""Receive update packet from QSUSB."""
_LOGGER.debug("Update %s (%s): %s", self.entity_id, self.qsid, packet)
self._val = packet
self.async_schedule_update_ha_state()
@property
def state(self):
"""Return the value of the sensor."""
return self._val.get('data', 0)
@property
def device_state_attributes(self):
"""Return the state attributes of the sensor."""
return self._val
@property
def unit_of_measurement(self):
"""Return the unit the value is expressed in."""
return None
@property
def poll(self):
"""QS sensors gets packets in update_packet."""
return False
async def async_added_to_hass(self):
"""Listen for updates from QSUSb via dispatcher."""
# Part of Entity/ToggleEntity
self.hass.helpers.dispatcher.async_dispatcher_connect(
self.qsid, self.update_packet)