core/homeassistant/components/ambient_station/sensor.py

97 lines
2.7 KiB
Python

"""Support for Ambient Weather Station sensors."""
import logging
from homeassistant.const import ATTR_NAME
from homeassistant.core import callback
from . import (
SENSOR_TYPES,
TYPE_SOLARRADIATION,
TYPE_SOLARRADIATION_LX,
AmbientWeatherEntity,
)
from .const import (
ATTR_LAST_DATA,
ATTR_MONITORED_CONDITIONS,
DATA_CLIENT,
DOMAIN,
TYPE_SENSOR,
)
_LOGGER = logging.getLogger(__name__)
async def async_setup_entry(hass, entry, async_add_entities):
"""Set up Ambient PWS sensors based on a config entry."""
ambient = hass.data[DOMAIN][DATA_CLIENT][entry.entry_id]
sensor_list = []
for mac_address, station in ambient.stations.items():
for condition in station[ATTR_MONITORED_CONDITIONS]:
name, unit, kind, device_class = SENSOR_TYPES[condition]
if kind == TYPE_SENSOR:
sensor_list.append(
AmbientWeatherSensor(
ambient,
mac_address,
station[ATTR_NAME],
condition,
name,
device_class,
unit,
)
)
async_add_entities(sensor_list, True)
class AmbientWeatherSensor(AmbientWeatherEntity):
"""Define an Ambient sensor."""
def __init__(
self,
ambient,
mac_address,
station_name,
sensor_type,
sensor_name,
device_class,
unit,
):
"""Initialize the sensor."""
super().__init__(
ambient, mac_address, station_name, sensor_type, sensor_name, device_class
)
self._unit = unit
@property
def state(self):
"""Return the state of the sensor."""
return self._state
@property
def unit_of_measurement(self):
"""Return the unit of measurement."""
return self._unit
@callback
def update_from_latest_data(self):
"""Fetch new state data for the sensor."""
if self._sensor_type == TYPE_SOLARRADIATION_LX:
# If the user requests the solarradiation_lx sensor, use the
# value of the solarradiation sensor and apply a very accurate
# approximation of converting sunlight W/m^2 to lx:
w_m2_brightness_val = self._ambient.stations[self._mac_address][
ATTR_LAST_DATA
].get(TYPE_SOLARRADIATION)
if w_m2_brightness_val is None:
self._state = None
else:
self._state = round(float(w_m2_brightness_val) / 0.0079)
else:
self._state = self._ambient.stations[self._mac_address][ATTR_LAST_DATA].get(
self._sensor_type
)