Error Adding Entities for Low Voltage Transformer

[bluecrystaldex]

This should be a pretty easy fix - looks like the sensor was expecting a numerical value for voltage (in this case, 12), but the value returned was the string "12V"

Logger: homeassistant.components.sensor
Source: helpers/entity_platform.py:608
integration: Sensor ([documentation](https://www.home-assistant.io/integrations/sensor), [issues](https://github.com/home-assistant/core/issues?q=is%3Aissue+is%3Aopen+label%3A%22integration%3A+sensor%22))
First occurred: January 26, 2025 at 11:46:13 PM (4 occurrences)
Last logged: 10:23:38 AM

Error adding entity sensor.backyard_landscape_lighting_output_voltage_switch_2 for domain sensor with platform hubspace
Error adding entity sensor.front_yard_landscape_lighting_output_voltage_switch_2 for domain sensor with platform hubspace

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/sensor/__init__.py", line 635, in state
    numerical_value = int(value)
ValueError: invalid literal for int() with base 10: '12V'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/sensor/__init__.py", line 638, in state
    numerical_value = float(value)
ValueError: could not convert string to float: '12V'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 608, in _async_add_entities
    await coro
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 927, in _async_add_entity
    await entity.add_to_platform_finish()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1384, in add_to_platform_finish
    self.async_write_ha_state()
    ~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1023, in async_write_ha_state
    self._async_write_ha_state()
    ~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1148, in _async_write_ha_state
    self.__async_calculate_state()
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1085, in __async_calculate_state
    state = self._stringify_state(available)
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1029, in _stringify_state
    if (state := self.state) is None:
                 ^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/sensor/__init__.py", line 642, in state
    raise ValueError(
    ...<5 lines>...
    ) from err
ValueError: Sensor sensor.backyard_landscape_lighting_output_voltage_switch_2 has device class 'voltage', state class 'measurement' unit 'V' and suggested precision 'None' thus indicating it has a numeric value; however, it has the non-numeric value: '12V' (<class 'str'>)

[Marsupilami23]

I, too, am receiving this error. I rolled back to 4.1.1, 4.1.0, and 4.0.1 with same results.

[400HPMustang]

I am also having this error on Home Assistant 2025.1.4, and integration version 4.2.0

Logger: homeassistant
Source: components/sensor/__init__.py:642
First occurred: January 30, 2025 at 9:51:58 PM (15 occurrences)
Last logged: 7:32:04 AM

Error doing job: Task exception was never retrieved (None)
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/sensor/__init__.py", line 635, in state
    numerical_value = int(value)
ValueError: invalid literal for int() with base 10: '12V'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/sensor/__init__.py", line 638, in state
    numerical_value = float(value)
ValueError: could not convert string to float: '12V'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/local/lib/python3.13/site-packages/aiohubspace/v1/controllers/base.py", line 106, in _handle_event
    callback(evt_type, cur_item)
    ~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/config/custom_components/hubspace/entity.py", line 92, in _handle_event
    self.async_write_ha_state()
    ~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1023, in async_write_ha_state
    self._async_write_ha_state()
    ~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1148, in _async_write_ha_state
    self.__async_calculate_state()
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1085, in __async_calculate_state
    state = self._stringify_state(available)
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1029, in _stringify_state
    if (state := self.state) is None:
                 ^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/sensor/__init__.py", line 642, in state
    raise ValueError(
    ...<5 lines>...
    ) from err
ValueError: Sensor sensor.transformer_output_voltage_switch_2 has device class 'voltage', state class 'measurement' unit 'V' and suggested precision 'None' thus indicating it has a numeric value; however, it has the non-numeric value: '12V' (<class 'str'>)