Fetch sensor data

[puchupala]

Add temperature, humidity, and illuminance sensors as 3 new separate entities.

This is my first time playing around with Home Assistant so I'm not sure how efficient my code is.
Most of the code is a direct modification from the Nature Remo E sensor.
Specifically, I'm not sure why we need the following method.

async def async_added_to_hass(self):
    """Subscribe to updates."""
    self.async_on_remove(
        self._coordinator.async_add_listener(self.async_write_ha_state)
    )

In any case, things seem to work...

[calee0219]

Hi,

I've try this PR but I meet the error as below:

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 383, in async_add_entities
    await asyncio.gather(*tasks)
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 588, in _async_add_entity
    await entity.add_to_platform_finish()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 615, in add_to_platform_finish
    self.async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 368, in async_write_ha_state
    self._async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 402, in _async_write_ha_state
    state = self._stringify_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 374, in _stringify_state
    state = self.state
  File "/config/custom_components/nature_remo/sensor.py", line 134, in state
    return device["newest_events"]["hu"]["val"]
KeyError: 'hu'

[puchupala]

@calee0219 Thank you very much for the report. I developed this PR for Nature Remo 3 which has temperature, humidity, illumination, and motion sensors.

I guess you test this PR with Nature Remo Mini, which only has a temperature sensor. Is this correct?

I will make the change to check for the availability of each sensor instead of just assuming that all sensors are available.

[calee0219]

Yes, the controler is using Nature Remo and Nature Remo Mini both.

[puchupala]

@calee0219 It's a very small change so I haven't really tested the code. Would you please confirm whether the latest commit fixes the issue?

[calee0219]

@puchupala thanks a lot! I have check on my side and there is no error now!

[calee0219]

The PR work on my environment.