BMS Connector Integration General Discussion

[flip555]

Discussion: Seplos BMS HA Integration

Hello everyone,

I thought I'd open a discussion about the Seplos BMS HA Integration. This integration enables users to monitor and control their v2.0 Seplos Battery Management System (BMS) using Home Assistant.

Key Features:

• Real-time monitoring of cell voltage, temperature, and alarms.
• Seamless integration with Seplos BMS via serial communication.
• User-friendly configuration and customization options.
• Comprehensive sensor information for well-informed decision-making.

Getting Started:

To begin using this integration, please refer to the documentation provided in the repository's README. You'll find step-by-step instructions on installation, configuration, and usage.

Feedback and Contributions:

We wholeheartedly welcome your feedback, bug reports, feature requests, and contributions aimed at enhancing this integration. If you come across any issues or have innovative ideas, please don't hesitate to share them here.

Thank you for your interest in the Seplos BMS HA Integration. Let's collaborate to make it a valuable asset for the Home Assistant community.

[claudiux13]

Hi! after setting up the integration with rs485 to usb cable to the rpi 4 running ha I get the following error(s) in my log:

2023-12-24 12:03:48.856 ERROR (MainThread) [custom_components.bms_connector.sensor] Error setting up BMS sensors: cannot access local variable 'pib_data' where it is not associated with a value

2023-12-24 12:03:51.571 ERROR (MainThread) [homeassistant] Error doing job: Exception in callback _async_at_core_state.._matched_event(<Event homeassistant_start[L]>) at /usr/src/homeassistant/homeassistant/helpers/start.py:37

Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/components/sensor/init.py", line 621, in state
numerical_value = float(value) # type:ignore[arg-type]
^^^^^^^^^^^^
ValueError: could not convert string to float: 'unavailable'
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/usr/local/lib/python3.11/asyncio/events.py", line 80, in _run
self._context.run(self._callback, *self._args)
File "/usr/src/homeassistant/homeassistant/core.py", line 1236, in _onetime_listener
self._hass.async_run_job(listener, event)
File "/usr/src/homeassistant/homeassistant/core.py", line 719, in async_run_job
return self.async_run_hass_job(HassJob(target), *args)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/core.py", line 671, in async_run_hass_job
hassjob.target(*args)
File "/usr/src/homeassistant/homeassistant/helpers/start.py", line 40, in _matched_event
hass.async_run_hass_job(at_start_job, hass)
File "/usr/src/homeassistant/homeassistant/core.py", line 671, in async_run_hass_job
hassjob.target(*args)
File "/usr/src/homeassistant/homeassistant/components/template/template_entity.py", line 478, in _async_template_startup
result_info.async_refresh()
File "/usr/src/homeassistant/homeassistant/helpers/event.py", line 1035, in async_refresh
self._refresh(None)
File "/usr/src/homeassistant/homeassistant/helpers/event.py", line 1215, in _refresh
self.hass.async_run_hass_job(self._job, event, updates)
File "/usr/src/homeassistant/homeassistant/core.py", line 671, in async_run_hass_job
hassjob.target(*args)
File "/usr/src/homeassistant/homeassistant/components/template/template_entity.py", line 429, in _handle_results
self.async_write_ha_state()
File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 745, in async_write_ha_state
self._async_write_ha_state()
File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 845, in _async_write_ha_state
state, attr = self._async_generate_attributes()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 786, in _async_generate_attributes
state = self._stringify_state(available)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 751, in _stringify_state
if (state := self.state) is None:
^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/components/sensor/init.py", line 623, in state
raise ValueError(
ValueError: Sensor sensor.sensore_potenza_casa_w has device class 'None', state class 'None' unit 'W' and suggested precision 'None' thus indicating it has a numeric value; however, it has the non-numeric value: 'unavailable' (<class 'str'>)
2023-12-24 12:17:24.004 ERROR (MainThread) [custom_components.bms_connector.sensor] Error setting up BMS sensors: cannot access local variable 'pib_data' where it is not associated with a value

Any help or insight is much appriciated. Thanks :)

[Xcpro1]

Hi, just integrate my Seplos bms with active balancer. It's normal that the switches, the total charge and discharge meter (Ah), the delta V are missing??? Thank you.