core/homeassistant/components/tellstick/sensor.py

130 lines
4.1 KiB
Python

"""Support for Tellstick sensors."""
import logging
from collections import namedtuple
import voluptuous as vol
from homeassistant.components.sensor import PLATFORM_SCHEMA
from homeassistant.const import TEMP_CELSIUS, CONF_ID, CONF_NAME
from homeassistant.helpers.entity import Entity
import homeassistant.helpers.config_validation as cv
_LOGGER = logging.getLogger(__name__)
DatatypeDescription = namedtuple("DatatypeDescription", ["name", "unit"])
CONF_DATATYPE_MASK = "datatype_mask"
CONF_ONLY_NAMED = "only_named"
CONF_TEMPERATURE_SCALE = "temperature_scale"
DEFAULT_DATATYPE_MASK = 127
DEFAULT_TEMPERATURE_SCALE = TEMP_CELSIUS
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
{
vol.Optional(
CONF_TEMPERATURE_SCALE, default=DEFAULT_TEMPERATURE_SCALE
): cv.string,
vol.Optional(
CONF_DATATYPE_MASK, default=DEFAULT_DATATYPE_MASK
): cv.positive_int,
vol.Optional(CONF_ONLY_NAMED, default=[]): vol.All(
cv.ensure_list,
[
vol.Schema(
{
vol.Required(CONF_ID): cv.positive_int,
vol.Required(CONF_NAME): cv.string,
}
)
],
),
}
)
def setup_platform(hass, config, add_entities, discovery_info=None):
"""Set up the Tellstick sensors."""
from tellcore import telldus
import tellcore.constants as tellcore_constants
sensor_value_descriptions = {
tellcore_constants.TELLSTICK_TEMPERATURE: DatatypeDescription(
"temperature", config.get(CONF_TEMPERATURE_SCALE)
),
tellcore_constants.TELLSTICK_HUMIDITY: DatatypeDescription("humidity", "%"),
tellcore_constants.TELLSTICK_RAINRATE: DatatypeDescription("rain rate", ""),
tellcore_constants.TELLSTICK_RAINTOTAL: DatatypeDescription("rain total", ""),
tellcore_constants.TELLSTICK_WINDDIRECTION: DatatypeDescription(
"wind direction", ""
),
tellcore_constants.TELLSTICK_WINDAVERAGE: DatatypeDescription(
"wind average", ""
),
tellcore_constants.TELLSTICK_WINDGUST: DatatypeDescription("wind gust", ""),
}
try:
tellcore_lib = telldus.TelldusCore()
except OSError:
_LOGGER.exception("Could not initialize Tellstick")
return
sensors = []
datatype_mask = config.get(CONF_DATATYPE_MASK)
if config[CONF_ONLY_NAMED]:
named_sensors = {
named_sensor[CONF_ID]: named_sensor[CONF_NAME]
for named_sensor in config[CONF_ONLY_NAMED]
}
for tellcore_sensor in tellcore_lib.sensors():
if not config[CONF_ONLY_NAMED]:
sensor_name = str(tellcore_sensor.id)
else:
if tellcore_sensor.id not in named_sensors:
continue
sensor_name = named_sensors[tellcore_sensor.id]
for datatype in sensor_value_descriptions:
if datatype & datatype_mask and tellcore_sensor.has_value(datatype):
sensor_info = sensor_value_descriptions[datatype]
sensors.append(
TellstickSensor(sensor_name, tellcore_sensor, datatype, sensor_info)
)
add_entities(sensors)
class TellstickSensor(Entity):
"""Representation of a Tellstick sensor."""
def __init__(self, name, tellcore_sensor, datatype, sensor_info):
"""Initialize the sensor."""
self._datatype = datatype
self._tellcore_sensor = tellcore_sensor
self._unit_of_measurement = sensor_info.unit or None
self._value = None
self._name = "{} {}".format(name, sensor_info.name)
@property
def name(self):
"""Return the name of the sensor."""
return self._name
@property
def state(self):
"""Return the state of the sensor."""
return self._value
@property
def unit_of_measurement(self):
"""Return the unit of measurement of this entity, if any."""
return self._unit_of_measurement
def update(self):
"""Update tellstick sensor."""
self._value = self._tellcore_sensor.value(self._datatype).value