edl21 reports issue adding entities

[weidi]

The problem

One of two edl21 sensors is not very reliable and there is an error reported in homeassistant log.
It sounds like a problem implemented with #64926
Think the phase angle measured in ° is not handled correctly.

What version of Home Assistant Core has the issue?

core-2022.4.4

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant OS

Integration causing the issue

edl21

Link to integration documentation on our website

https://www.home-assistant.io/integrations/edl21

Diagnostics information

No response

Example YAML snippet

sensor:
  - platform: edl21
    serial_port: /dev/serial/by-id/usb-Silicon_Labs_CP2102_USB_to_UART_Bridge_Controller_0001-if00-port0
    name: Haushaltsstrom
  - platform: edl21
    serial_port: /dev/serial/by-id/usb-Silicon_Labs_CP2102_USB_to_UART_Bridge_Controller_0045-if00-port0
    name: Heizungsstrom

Anything in the logs that might be useful for us?

2022-04-15 21:13:22 ERROR (MainThread) [homeassistant.components.sensor] Error adding entities for domain sensor with platform edl21
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 382, in async_add_entities
    await asyncio.gather(*tasks)
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 525, in _async_add_entity
    unit_of_measurement=entity.unit_of_measurement,
  File "/usr/src/homeassistant/homeassistant/components/sensor/__init__.py", line 397, in unit_of_measurement
    native_unit_of_measurement = self.native_unit_of_measurement
  File "/usr/src/homeassistant/homeassistant/components/edl21/sensor.py", line 456, in native_unit_of_measurement
    return SENSOR_UNIT_MAPPING[unit]
KeyError: '°'

2022-04-15 21:13:24 ERROR (MainThread) [homeassistant.components.sensor] Error adding entities for domain sensor with platform edl21
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 382, in async_add_entities
    await asyncio.gather(*tasks)
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 525, in _async_add_entity
    unit_of_measurement=entity.unit_of_measurement,
  File "/usr/src/homeassistant/homeassistant/components/sensor/__init__.py", line 397, in unit_of_measurement
    native_unit_of_measurement = self.native_unit_of_measurement
  File "/usr/src/homeassistant/homeassistant/components/edl21/sensor.py", line 456, in native_unit_of_measurement
    return SENSOR_UNIT_MAPPING[unit]
KeyError: '°'

Additional information

No response

[probot-home-assistant]

edl21 documentation
edl21 source
_{^{(message by IssueLinks)}}

[probot-home-assistant]

Hey there @mtdcr, mind taking a look at this issue as it has been labeled with an integration (edl21) you are listed as a code owner for? Thanks!
_{^{(message by CodeOwnersMention)}}

[weidi]

might be just adding DEGREE "°"

from homeassistant.const import (
    CONF_NAME,
    ELECTRIC_CURRENT_AMPERE,
    ELECTRIC_POTENTIAL_VOLT,
    ENERGY_KILO_WATT_HOUR,
    ENERGY_WATT_HOUR,
    POWER_WATT,
    DEGREE,
)


SENSOR_UNIT_MAPPING = {
    "Wh": ENERGY_WATT_HOUR,
    "kWh": ENERGY_KILO_WATT_HOUR,
    "W": POWER_WATT,
    "A": ELECTRIC_CURRENT_AMPERE,
    "V": ELECTRIC_POTENTIAL_VOLT,
    "°": DEGREE,
}

[ufozone]

Same issue, but other KeyError:

2022-04-29 21:57:24 ERROR (MainThread) [homeassistant.components.sensor] Error adding entities for domain sensor with platform edl21
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 382, in async_add_entities
    await asyncio.gather(*tasks)
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 525, in _async_add_entity
    unit_of_measurement=entity.unit_of_measurement,
  File "/usr/src/homeassistant/homeassistant/components/sensor/__init__.py", line 397, in unit_of_measurement
    native_unit_of_measurement = self.native_unit_of_measurement
  File "/usr/src/homeassistant/homeassistant/components/edl21/sensor.py", line 456, in native_unit_of_measurement
    return SENSOR_UNIT_MAPPING[unit]
KeyError: 0
2022-04-29 21:57:26 ERROR (MainThread) [homeassistant] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 382, in async_add_entities
    await asyncio.gather(*tasks)
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 525, in _async_add_entity
    unit_of_measurement=entity.unit_of_measurement,
  File "/usr/src/homeassistant/homeassistant/components/sensor/__init__.py", line 397, in unit_of_measurement
    native_unit_of_measurement = self.native_unit_of_measurement
  File "/usr/src/homeassistant/homeassistant/components/edl21/sensor.py", line 456, in native_unit_of_measurement
    return SENSOR_UNIT_MAPPING[unit]
KeyError: 0