__init__.py

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"""The component for STIEBEL ELTRON heat pumps with ISGWeb Modbus module."""
 
from datetime import timedelta
import logging
 
from pystiebeleltron import pystiebeleltron
import voluptuous as vol
 
from homeassistant.const import CONF_NAME, DEVICE_DEFAULT_NAME, Platform
from homeassistant.core import HomeAssistant
from homeassistant.helpers import discovery
import homeassistant.helpers.config_validation as cv
from homeassistant.helpers.typing import ConfigType
from homeassistant.util import Throttle
 
CONF_HUB = "hub"
DEFAULT_HUB = "modbus_hub"
MODBUS_DOMAIN = "modbus"
DOMAIN = "stiebel_eltron"
 
CONFIG_SCHEMA = vol.Schema(
    {
        DOMAIN: vol.Schema(
            {
                vol.Optional(CONF_NAME, default=DEVICE_DEFAULT_NAME): cv.string,
                vol.Optional(CONF_HUB, default=DEFAULT_HUB): cv.string,
            }
        )
    },
    extra=vol.ALLOW_EXTRA,
)
 
_LOGGER = logging.getLogger(__name__)
 
MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=30)
 
 
def setup(hass: HomeAssistant, config: ConfigType) -> bool:
    """Set up the STIEBEL ELTRON unit.
 
    Will automatically load climate platform.
    """
    name = config[DOMAIN][CONF_NAME]
    modbus_client = hass.data[MODBUS_DOMAIN][config[DOMAIN][CONF_HUB]]
 
    hass.data[DOMAIN] = {
        "name": name,
        "ste_data": StiebelEltronData(name, modbus_client),
    }
 
    discovery.load_platform(hass, Platform.CLIMATE, DOMAIN, {}, config)
    return True
 
 
class StiebelEltronData:
    """Get the latest data and update the states."""
 
    def __init__(self, name, modbus_client):
        """Init the STIEBEL ELTRON data object."""
 
        self.apiapi = pystiebeleltron.StiebelEltronAPI(modbus_client, 1)
 
    @Throttle(MIN_TIME_BETWEEN_UPDATES)
    def update(self):
        """Update unit data."""
        if not self.apiapi.update():
            _LOGGER.warning("Modbus read failed")
        else:
            _LOGGER.debug("Data updated successfully")