Easily connect and integrate various Battery Management Systems (BMS) with Home Assistant using this custom integration. This versatile tool provides detailed sensor readings, alarm notifications, and a wealth of telemetry data directly from multiple BMS units.

• Seplos BMS 2.0:

  • Integration Highlights:
    • Detailed Data: Fetch cell voltage for every cell in the system.
    • Comprehensive Alarms: Get unambiguous feedback from different alarm states.
    • Telemetry Insights: Access vital information like temperatures, currents, and the system state.
    • Full Retrieval of BMS Settings: Retrieve configuration settings from the BMS.

• Seplos BMS 3.0:

  • Cell Voltages, Pack Voltages Temp and Currents should all be available and working for a single battery. More coming very soon!

• Custom BMS Compatibility: Enhanced scanning capability to find all battery packs (Note: Currently focused on pack 0).

• Extended support further for Seplos BMS 3.0.
• Improved scanning capabilities for various BMS models.
• Enhanced configuration options and multilingual support with translations.
• Codebase optimization and removal of unnecessary blueprint integrations.
• Robust error handling for enhanced stability.

1. Ensure you have HACS installed.
2. Go to the HACS Integrations page.
3. Click the three dots in the upper right corner and select "Custom repositories".
4. Enter the URL https://github.com/flip555/bms_connector and choose Integration from the category dropdown.
5. Click "Add".
6. You can now find BMS Connector in the Integrations list within HACS. Simply install it.

1. Clone this repository or download the ZIP file.
2. Transfer the bms_connector folder from the repository into the custom_components directory within your Home Assistant configuration.
3. Restart Home Assistant.

1. Access the Integrations page in the Home Assistant UI.
2. Click the "+" icon at the bottom.
3. Search for "BMS Connector" and start the configuration process.
4. Select the appropriate source for your BMS hardware.
5. For users with the RS485-USB setup, enter the USB port using the template /dev/ttyUSBX, where X represents the port number (e.g., /dev/ttyUSB0).
6. Click "Submit" to complete the setup.

Thank you for your interest in contributing to our project! Whether you're reporting bugs, proposing new features, or contributing code, we appreciate your support. Here are some guidelines to follow:

• Branch name: main
• Purpose: This branch contains the production-ready code. It should always be stable and deployable.
• Maintainer: flip555

• Branch name: next-branch
• Purpose: This is the development or integration branch where new features and fixes are accumulated before being merged into main.
• Maintainer: flip555

• Branch names: E.g., battery-multipacks
• Purpose: These branches are created for new features or fixes to keep work isolated. They will be merged into next-branch once completed.
• Maintainer: Individual contributors

1. Creating new branches: For any new feature or fix, create a new branch.
2. Merging into next-branch: Once your work is complete, create a pull request to merge it into next-branch.
3. Testing: Before merging changes into main, we conduct thorough testing in the next-branch.
4. Merging into main: After ensuring stability, changes from next-branch are merged into main.
5. Releasing: Following a successful merge into main, tag the commit with a version number to indicate a new release.
6. Reset next-branch: Post-release, reset next-branch to the current state of main to begin the next development cycle.

Feel free to use resources like ChatGPT to assist you, even if you are a novice coder. We are here to foster a collaborative and inclusive environment.

When reporting issues, please be as descriptive as possible. Provide the steps to reproduce the issue, expected outcome, and actual results.

Thank you for your collaboration and contribution!

Encountering an issue or need assistance? Don't hesitate to open an issue on the GitHub repository.

• ChatGPT: Developed by OpenAI, ChatGPT is a large language model capable of understanding and generating human-like text.
• Seplos Protocol Manuals: You can find these in the assets/ directory of this repository.
• Integration Blueprint: A valuable template for creating custom components for Home Assistant. GitHub Repository
• ESPHome Seplos BMS: A related project that integrates Seplos BMS with ESPHome. GitHub Repository
• Modbus Seplos BMS Reader: A Modbus implementation for reading Seplos BMS data. GitHub Repository