This is temporary fix for TP-Link HS110 after firmware upgrade for Home Assistant. Just save this file to `custom_components/switch` folder in config folder and it will replace original component from Home Assistant. I have changed how requirements are provided so it will install current version of pyHS100 with required patches to work. No more …

tplink.py

"""
Support for TPLink HS100/HS110/HS200 smart switch.

For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/switch.tplink/
"""
import logging
import time

import voluptuous as vol

from homeassistant.components.switch import (
    SwitchDevice, PLATFORM_SCHEMA, ATTR_CURRENT_POWER_W, ATTR_TODAY_ENERGY_KWH)
from homeassistant.const import (CONF_HOST, CONF_NAME, ATTR_VOLTAGE)
import homeassistant.helpers.config_validation as cv

REQUIREMENTS = ['pyHS100==0.3.2']

_LOGGER = logging.getLogger(__name__)

ATTR_TOTAL_ENERGY_KWH = 'total_energy_kwh'
ATTR_CURRENT_A = 'current_a'

CONF_LEDS = 'enable_leds'

DEFAULT_NAME = 'TP-Link Switch'

PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
    vol.Required(CONF_HOST): cv.string,
    vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
    vol.Optional(CONF_LEDS): cv.boolean,
})


# pylint: disable=unused-argument
def setup_platform(hass, config, add_devices, discovery_info=None):
    """Set up the TPLink switch platform."""
    from pyHS100 import SmartPlug
    host = config.get(CONF_HOST)
    name = config.get(CONF_NAME)
    leds_on = config.get(CONF_LEDS)

    add_devices([SmartPlugSwitch(SmartPlug(host), name, leds_on)], True)


class SmartPlugSwitch(SwitchDevice):
    """Representation of a TPLink Smart Plug switch."""

    def __init__(self, smartplug, name, leds_on):
        """Initialize the switch."""
        self.smartplug = smartplug
        self._name = name
        if leds_on is not None:
            self.smartplug.led = leds_on
        self._state = None
        self._available = True
        # Set up emeter cache
        self._emeter_params = {}

    @property
    def name(self):
        """Return the name of the Smart Plug, if any."""
        return self._name

    @property
    def available(self) -> bool:
        """Return if switch is available."""
        return self._available

    @property
    def is_on(self):
        """Return true if switch is on."""
        return self._state

    def turn_on(self, **kwargs):
        """Turn the switch on."""
        self.smartplug.turn_on()

    def turn_off(self):
        """Turn the switch off."""
        self.smartplug.turn_off()

    @property
    def device_state_attributes(self):
        """Return the state attributes of the device."""
        return self._emeter_params

    def update(self):
        """Update the TP-Link switch's state."""
        from pyHS100 import SmartDeviceException
        try:
            self._available = True
            self._state = self.smartplug.state == \
                self.smartplug.SWITCH_STATE_ON

            if self._name is None:
                self._name = self.smartplug.alias

            if self.smartplug.has_emeter:
                emeter_readings = self.smartplug.get_emeter_realtime()
                for value in emeter_readings :
                  try :
                      name, unit = value.split("_",1)
                      div = 1000
                  except ValueError:
                      name = value.split("_",1)[0]
                      div = 1

                  if name == "power":
                      self._emeter_params[ATTR_CURRENT_POWER_W] \
                          = "%.1f W" % (float(emeter_readings[value])/div)
                  if name == "total":
                      self._emeter_params[ATTR_TODAY_ENERGY_KWH] \
                          = "%.2f kW" % (float(emeter_readings[value])/div)
                  if name == "voltage":
                      self._emeter_params[ATTR_VOLTAGE] \
                          = "%.2f V" % (float(emeter_readings[value])/div)
                  if name == "current":
                      self._emeter_params[ATTR_CURRENT_A] \
                          = "%.1f A" % (float(emeter_readings[value])/div)

                try:
                    emeter_statics = self.smartplug.get_emeter_daily()
                    self._emeter_params[ATTR_TODAY_ENERGY_KWH] \
                        = "%.2f kW" % (float(emeter_statics[int(time.strftime("%e"))]/1000))
                except KeyError:
                    # Device returned no daily history
                    pass

        except (SmartDeviceException, OSError) as ex:
            _LOGGER.warning("Could not read state for %s: %s", self.name, ex)
            self._available = False

Dear Adam,
that is what I was looking for. Unfortunately after copying the file in the the mentioned folder "switch" (which did not exist) nothing happend. My HS110 is still shown wihtout the sensors. Only the switch.
Is there anything to conifgure in "configurations.yaml"?

Dear Adam,
that is what I was looking for. Unfortunately after copying the file in the the mentioned folder "switch" (which did not exist) nothing happend. My HS110 is still shown wihtout the sensors. Only the switch.
Is there anything to conifgure in "configurations.yaml"?

I found out, the sensordata are available in the switch entity card:

But I can´t display them in the Lovelace UI. No sensors are found.

Is that normal behavior with your script?

This script is for a very old version of HA, when there were problems with an old version of library. This was fast fix to overcome this problem and I suggest using integration in new versions of HA. I'm currently using it and there are no problems with it.