378 lines
12 KiB
Python
378 lines
12 KiB
Python
"""Support for Radio Thermostat wifi-enabled home thermostats."""
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import logging
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from socket import timeout
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import radiotherm
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import voluptuous as vol
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from homeassistant.components.climate import PLATFORM_SCHEMA, ClimateEntity
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from homeassistant.components.climate.const import (
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CURRENT_HVAC_COOL,
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CURRENT_HVAC_HEAT,
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CURRENT_HVAC_IDLE,
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FAN_OFF,
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FAN_ON,
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HVAC_MODE_AUTO,
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HVAC_MODE_COOL,
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HVAC_MODE_HEAT,
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HVAC_MODE_OFF,
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PRESET_AWAY,
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PRESET_HOME,
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SUPPORT_FAN_MODE,
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SUPPORT_PRESET_MODE,
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SUPPORT_TARGET_TEMPERATURE,
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)
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from homeassistant.const import (
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ATTR_TEMPERATURE,
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CONF_HOST,
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PRECISION_HALVES,
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STATE_ON,
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TEMP_FAHRENHEIT,
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)
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import homeassistant.helpers.config_validation as cv
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from homeassistant.util import dt as dt_util
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_LOGGER = logging.getLogger(__name__)
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ATTR_FAN_ACTION = "fan_action"
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CONF_HOLD_TEMP = "hold_temp"
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PRESET_HOLIDAY = "holiday"
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PRESET_ALTERNATE = "alternate"
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STATE_CIRCULATE = "circulate"
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PRESET_MODES = [PRESET_HOME, PRESET_ALTERNATE, PRESET_AWAY, PRESET_HOLIDAY]
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OPERATION_LIST = [HVAC_MODE_AUTO, HVAC_MODE_COOL, HVAC_MODE_HEAT, HVAC_MODE_OFF]
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CT30_FAN_OPERATION_LIST = [STATE_ON, HVAC_MODE_AUTO]
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CT80_FAN_OPERATION_LIST = [STATE_ON, STATE_CIRCULATE, HVAC_MODE_AUTO]
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# Mappings from radiotherm json data codes to and from Home Assistant state
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# flags. CODE is the thermostat integer code and these map to and
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# from Home Assistant state flags.
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# Programmed temperature mode of the thermostat.
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CODE_TO_TEMP_MODE = {
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0: HVAC_MODE_OFF,
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1: HVAC_MODE_HEAT,
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2: HVAC_MODE_COOL,
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3: HVAC_MODE_AUTO,
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}
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TEMP_MODE_TO_CODE = {v: k for k, v in CODE_TO_TEMP_MODE.items()}
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# Programmed fan mode (circulate is supported by CT80 models)
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CODE_TO_FAN_MODE = {0: HVAC_MODE_AUTO, 1: STATE_CIRCULATE, 2: STATE_ON}
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FAN_MODE_TO_CODE = {v: k for k, v in CODE_TO_FAN_MODE.items()}
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# Active thermostat state (is it heating or cooling?). In the future
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# this should probably made into heat and cool binary sensors.
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CODE_TO_TEMP_STATE = {0: CURRENT_HVAC_IDLE, 1: CURRENT_HVAC_HEAT, 2: CURRENT_HVAC_COOL}
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# Active fan state. This is if the fan is actually on or not. In the
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# future this should probably made into a binary sensor for the fan.
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CODE_TO_FAN_STATE = {0: FAN_OFF, 1: FAN_ON}
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PRESET_MODE_TO_CODE = {"home": 0, "alternate": 1, "away": 2, "holiday": 3}
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CODE_TO_PRESET_MODE = {0: "home", 1: "alternate", 2: "away", 3: "holiday"}
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def round_temp(temperature):
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"""Round a temperature to the resolution of the thermostat.
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RadioThermostats can handle 0.5 degree temps so the input
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temperature is rounded to that value and returned.
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"""
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return round(temperature * 2.0) / 2.0
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
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{
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vol.Optional(CONF_HOST): vol.All(cv.ensure_list, [cv.string]),
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vol.Optional(CONF_HOLD_TEMP, default=False): cv.boolean,
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}
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)
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SUPPORT_FLAGS = SUPPORT_TARGET_TEMPERATURE | SUPPORT_FAN_MODE | SUPPORT_PRESET_MODE
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def setup_platform(hass, config, add_entities, discovery_info=None):
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"""Set up the Radio Thermostat."""
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hosts = []
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if CONF_HOST in config:
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hosts = config[CONF_HOST]
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else:
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hosts.append(radiotherm.discover.discover_address())
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if hosts is None:
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_LOGGER.error("No Radiotherm Thermostats detected")
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return False
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hold_temp = config.get(CONF_HOLD_TEMP)
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tstats = []
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for host in hosts:
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try:
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tstat = radiotherm.get_thermostat(host)
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tstats.append(RadioThermostat(tstat, hold_temp))
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except OSError:
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_LOGGER.exception("Unable to connect to Radio Thermostat: %s", host)
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add_entities(tstats, True)
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class RadioThermostat(ClimateEntity):
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"""Representation of a Radio Thermostat."""
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def __init__(self, device, hold_temp):
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"""Initialize the thermostat."""
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self.device = device
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self._target_temperature = None
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self._current_temperature = None
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self._current_humidity = None
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self._current_operation = HVAC_MODE_OFF
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self._name = None
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self._fmode = None
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self._fstate = None
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self._tmode = None
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self._tstate = None
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self._hold_temp = hold_temp
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self._hold_set = False
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self._prev_temp = None
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self._preset_mode = None
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self._program_mode = None
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self._is_away = False
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# Fan circulate mode is only supported by the CT80 models.
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self._is_model_ct80 = isinstance(self.device, radiotherm.thermostat.CT80)
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@property
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def supported_features(self):
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"""Return the list of supported features."""
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return SUPPORT_FLAGS
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async def async_added_to_hass(self):
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"""Register callbacks."""
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# Set the time on the device. This shouldn't be in the
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# constructor because it's a network call. We can't put it in
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# update() because calling it will clear any temporary mode or
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# temperature in the thermostat. So add it as a future job
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# for the event loop to run.
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self.hass.async_add_job(self.set_time)
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@property
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def name(self):
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"""Return the name of the Radio Thermostat."""
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return self._name
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@property
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def temperature_unit(self):
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"""Return the unit of measurement."""
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return TEMP_FAHRENHEIT
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@property
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def precision(self):
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"""Return the precision of the system."""
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return PRECISION_HALVES
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@property
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def extra_state_attributes(self):
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"""Return the device specific state attributes."""
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return {ATTR_FAN_ACTION: self._fstate}
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@property
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def fan_modes(self):
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"""List of available fan modes."""
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if self._is_model_ct80:
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return CT80_FAN_OPERATION_LIST
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return CT30_FAN_OPERATION_LIST
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@property
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def fan_mode(self):
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"""Return whether the fan is on."""
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return self._fmode
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def set_fan_mode(self, fan_mode):
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"""Turn fan on/off."""
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code = FAN_MODE_TO_CODE.get(fan_mode)
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if code is not None:
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self.device.fmode = code
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@property
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def current_temperature(self):
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"""Return the current temperature."""
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return self._current_temperature
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@property
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def current_humidity(self):
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"""Return the current temperature."""
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return self._current_humidity
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@property
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def hvac_mode(self):
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"""Return the current operation. head, cool idle."""
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return self._current_operation
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@property
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def hvac_modes(self):
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"""Return the operation modes list."""
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return OPERATION_LIST
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@property
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def hvac_action(self):
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"""Return the current running hvac operation if supported."""
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if self.hvac_mode == HVAC_MODE_OFF:
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return None
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return self._tstate
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@property
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def target_temperature(self):
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"""Return the temperature we try to reach."""
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return self._target_temperature
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@property
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def preset_mode(self):
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"""Return the current preset mode, e.g., home, away, temp."""
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if self._program_mode == 0:
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return PRESET_HOME
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if self._program_mode == 1:
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return PRESET_ALTERNATE
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if self._program_mode == 2:
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return PRESET_AWAY
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if self._program_mode == 3:
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return PRESET_HOLIDAY
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@property
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def preset_modes(self):
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"""Return a list of available preset modes."""
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return PRESET_MODES
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def update(self):
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"""Update and validate the data from the thermostat."""
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# Radio thermostats are very slow, and sometimes don't respond
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# very quickly. So we need to keep the number of calls to them
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# to a bare minimum or we'll hit the Home Assistant 10 sec warning. We
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# have to make one call to /tstat to get temps but we'll try and
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# keep the other calls to a minimum. Even with this, these
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# thermostats tend to time out sometimes when they're actively
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# heating or cooling.
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try:
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# First time - get the name from the thermostat. This is
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# normally set in the radio thermostat web app.
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if self._name is None:
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self._name = self.device.name["raw"]
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# Request the current state from the thermostat.
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data = self.device.tstat["raw"]
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if self._is_model_ct80:
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humiditydata = self.device.humidity["raw"]
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except radiotherm.validate.RadiothermTstatError:
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_LOGGER.warning(
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"%s (%s) was busy (invalid value returned)",
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self._name,
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self.device.host,
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)
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except timeout:
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_LOGGER.warning(
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"Timeout waiting for response from %s (%s)",
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self._name,
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self.device.host,
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)
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else:
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if self._is_model_ct80:
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self._current_humidity = humiditydata
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self._program_mode = data["program_mode"]
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self._preset_mode = CODE_TO_PRESET_MODE[data["program_mode"]]
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# Map thermostat values into various STATE_ flags.
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self._current_temperature = data["temp"]
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self._fmode = CODE_TO_FAN_MODE[data["fmode"]]
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self._fstate = CODE_TO_FAN_STATE[data["fstate"]]
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self._tmode = CODE_TO_TEMP_MODE[data["tmode"]]
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self._tstate = CODE_TO_TEMP_STATE[data["tstate"]]
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self._current_operation = self._tmode
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if self._tmode == HVAC_MODE_COOL:
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self._target_temperature = data["t_cool"]
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elif self._tmode == HVAC_MODE_HEAT:
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self._target_temperature = data["t_heat"]
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elif self._tmode == HVAC_MODE_AUTO:
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# This doesn't really work - tstate is only set if the HVAC is
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# active. If it's idle, we don't know what to do with the target
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# temperature.
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if self._tstate == CURRENT_HVAC_COOL:
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self._target_temperature = data["t_cool"]
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elif self._tstate == CURRENT_HVAC_HEAT:
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self._target_temperature = data["t_heat"]
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else:
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self._current_operation = HVAC_MODE_OFF
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def set_temperature(self, **kwargs):
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"""Set new target temperature."""
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temperature = kwargs.get(ATTR_TEMPERATURE)
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if temperature is None:
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return
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temperature = round_temp(temperature)
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if self._current_operation == HVAC_MODE_COOL:
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self.device.t_cool = temperature
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elif self._current_operation == HVAC_MODE_HEAT:
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self.device.t_heat = temperature
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elif self._current_operation == HVAC_MODE_AUTO:
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if self._tstate == CURRENT_HVAC_COOL:
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self.device.t_cool = temperature
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elif self._tstate == CURRENT_HVAC_HEAT:
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self.device.t_heat = temperature
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# Only change the hold if requested or if hold mode was turned
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# on and we haven't set it yet.
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if kwargs.get("hold_changed", False) or not self._hold_set:
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if self._hold_temp:
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self.device.hold = 1
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self._hold_set = True
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else:
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self.device.hold = 0
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def set_time(self):
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"""Set device time."""
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# Calling this clears any local temperature override and
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# reverts to the scheduled temperature.
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now = dt_util.now()
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self.device.time = {
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"day": now.weekday(),
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"hour": now.hour,
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"minute": now.minute,
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}
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def set_hvac_mode(self, hvac_mode):
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"""Set operation mode (auto, cool, heat, off)."""
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if hvac_mode in (HVAC_MODE_OFF, HVAC_MODE_AUTO):
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self.device.tmode = TEMP_MODE_TO_CODE[hvac_mode]
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# Setting t_cool or t_heat automatically changes tmode.
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elif hvac_mode == HVAC_MODE_COOL:
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self.device.t_cool = self._target_temperature
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elif hvac_mode == HVAC_MODE_HEAT:
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self.device.t_heat = self._target_temperature
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def set_preset_mode(self, preset_mode):
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"""Set Preset mode (Home, Alternate, Away, Holiday)."""
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if preset_mode in (PRESET_MODES):
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self.device.program_mode = PRESET_MODE_TO_CODE[preset_mode]
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else:
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_LOGGER.error(
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"Preset_mode %s not in PRESET_MODES",
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preset_mode,
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)
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