core/homeassistant/components/thermostat/honeywell.py

138 lines
4.4 KiB
Python

"""
homeassistant.components.thermostat.honeywell
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Adds support for Honeywell Round Connected and Honeywell Evohome thermostats.
For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/thermostat.honeywell/
"""
import logging
import socket
from homeassistant.components.thermostat import ThermostatDevice
from homeassistant.const import (CONF_USERNAME, CONF_PASSWORD, TEMP_CELCIUS)
REQUIREMENTS = ['evohomeclient==0.2.4']
_LOGGER = logging.getLogger(__name__)
CONF_AWAY_TEMP = "away_temperature"
# pylint: disable=unused-argument
def setup_platform(hass, config, add_devices, discovery_info=None):
""" Sets up the honeywel thermostat. """
from evohomeclient import EvohomeClient
username = config.get(CONF_USERNAME)
password = config.get(CONF_PASSWORD)
try:
away_temp = float(config.get(CONF_AWAY_TEMP, 16))
except ValueError:
_LOGGER.error("value entered for item %s should convert to a number",
CONF_AWAY_TEMP)
return False
if username is None or password is None:
_LOGGER.error("Missing required configuration items %s or %s",
CONF_USERNAME, CONF_PASSWORD)
return False
evo_api = EvohomeClient(username, password)
try:
zones = evo_api.temperatures(force_refresh=True)
for i, zone in enumerate(zones):
add_devices([RoundThermostat(evo_api,
zone['id'],
i == 0,
away_temp)])
except socket.error:
_LOGGER.error(
"Connection error logging into the honeywell evohome web service"
)
return False
class RoundThermostat(ThermostatDevice):
""" Represents a Honeywell Round Connected thermostat. """
# pylint: disable=too-many-instance-attributes
def __init__(self, device, zone_id, master, away_temp):
self.device = device
self._current_temperature = None
self._target_temperature = None
self._name = "round connected"
self._id = zone_id
self._master = master
self._is_dhw = False
self._away_temp = away_temp
self._away = False
self.update()
@property
def name(self):
""" Returns the name of the honeywell, if any. """
return self._name
@property
def unit_of_measurement(self):
""" Unit of measurement this thermostat expresses itself in. """
return TEMP_CELCIUS
@property
def current_temperature(self):
""" Returns the current temperature. """
return self._current_temperature
@property
def target_temperature(self):
""" Returns the temperature we try to reach. """
if self._is_dhw:
return None
return self._target_temperature
def set_temperature(self, temperature):
""" Set new target temperature """
self.device.set_temperature(self._name, temperature)
@property
def is_away_mode_on(self):
""" Returns if away mode is on. """
return self._away
def turn_away_mode_on(self):
""" Turns away on.
Evohome does have a proprietary away mode, but it doesn't really work
the way it should. For example: If you set a temperature manually
it doesn't get overwritten when away mode is switched on.
"""
self._away = True
self.device.set_temperature(self._name, self._away_temp)
def turn_away_mode_off(self):
""" Turns away off. """
self._away = False
self.device.cancel_temp_override(self._name)
def update(self):
try:
# Only refresh if this is the "master" device,
# others will pick up the cache
for val in self.device.temperatures(force_refresh=self._master):
if val['id'] == self._id:
data = val
except StopIteration:
_LOGGER.error("Did not receive any temperature data from the "
"evohomeclient API.")
return
self._current_temperature = data['temp']
self._target_temperature = data['setpoint']
if data['thermostat'] == "DOMESTIC_HOT_WATER":
self._name = "Hot Water"
self._is_dhw = True
else:
self._name = data['name']
self._is_dhw = False