96 lines
3.2 KiB
Python
96 lines
3.2 KiB
Python
"""Support for monitoring an OpenEVSE Charger."""
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import logging
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from requests import RequestException
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import voluptuous as vol
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import homeassistant.helpers.config_validation as cv
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from homeassistant.components.sensor import PLATFORM_SCHEMA
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from homeassistant.const import (
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TEMP_CELSIUS, CONF_HOST, ENERGY_KILO_WATT_HOUR,
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CONF_MONITORED_VARIABLES)
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from homeassistant.helpers.entity import Entity
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_LOGGER = logging.getLogger(__name__)
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SENSOR_TYPES = {
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'status': ['Charging Status', None],
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'charge_time': ['Charge Time Elapsed', 'minutes'],
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'ambient_temp': ['Ambient Temperature', TEMP_CELSIUS],
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'ir_temp': ['IR Temperature', TEMP_CELSIUS],
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'rtc_temp': ['RTC Temperature', TEMP_CELSIUS],
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'usage_session': ['Usage this Session', ENERGY_KILO_WATT_HOUR],
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'usage_total': ['Total Usage', ENERGY_KILO_WATT_HOUR]
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}
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
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vol.Required(CONF_HOST): cv.string,
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vol.Optional(CONF_MONITORED_VARIABLES, default=['status']):
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vol.All(cv.ensure_list, [vol.In(SENSOR_TYPES)]),
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})
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def setup_platform(hass, config, add_entities, discovery_info=None):
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"""Set up the OpenEVSE sensor."""
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import openevsewifi
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host = config.get(CONF_HOST)
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monitored_variables = config.get(CONF_MONITORED_VARIABLES)
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charger = openevsewifi.Charger(host)
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dev = []
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for variable in monitored_variables:
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dev.append(OpenEVSESensor(variable, charger))
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add_entities(dev, True)
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class OpenEVSESensor(Entity):
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"""Implementation of an OpenEVSE sensor."""
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def __init__(self, sensor_type, charger):
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"""Initialize the sensor."""
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self._name = SENSOR_TYPES[sensor_type][0]
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self.type = sensor_type
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self._state = None
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self.charger = charger
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self._unit_of_measurement = SENSOR_TYPES[sensor_type][1]
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@property
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def name(self):
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"""Return the name of the sensor."""
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return self._name
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@property
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def state(self):
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"""Return the state of the sensor."""
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return self._state
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@property
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def unit_of_measurement(self):
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"""Return the unit of measurement of this sensor."""
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return self._unit_of_measurement
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def update(self):
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"""Get the monitored data from the charger."""
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try:
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if self.type == 'status':
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self._state = self.charger.getStatus()
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elif self.type == 'charge_time':
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self._state = self.charger.getChargeTimeElapsed() / 60
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elif self.type == 'ambient_temp':
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self._state = self.charger.getAmbientTemperature()
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elif self.type == 'ir_temp':
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self._state = self.charger.getIRTemperature()
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elif self.type == 'rtc_temp':
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self._state = self.charger.getRTCTemperature()
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elif self.type == 'usage_session':
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self._state = float(self.charger.getUsageSession()) / 1000
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elif self.type == 'usage_total':
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self._state = float(self.charger.getUsageTotal()) / 1000
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else:
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self._state = 'Unknown'
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except (RequestException, ValueError, KeyError):
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_LOGGER.warning("Could not update status for %s", self.name)
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