1.0.1 - FEMS Diagnostics

🚀 FEMS Diagnostics v1.0.1

This release introduces a major usability improvement with a fully redesigned default dashboard and a structured, bilingual README.

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✨ Improvements

• Complete redesign of the default dashboard

  • Clear separation of Battery, Power Flow, Diagnostics, and Warnings
  • Improved layout for better readability on standard screen sizes
  • Reduced visual clutter and removal of redundant data
  • Focus on relevant daily diagnostics

• Enhanced power flow visualization

  • Added PV String 1 / PV String 2
  • Improved transparency of energy generation and consumption

• Diagnostics improvements

  • Compact cell health overview
  • Module-level ΔU visualization
  • Integrated ΔU interpretation hint for better usability

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📘 Documentation

• Introduced clean bilingual README structure (EN/DE)
• Improved project description and feature overview
• Added clear installation and configuration guidance

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🛠️ Fixes

• Corrected scaling of tower temperature sensors

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🎯 Result

FEMS Diagnostics now provides a clean, structured, and user-friendly out-of-the-box experience focused on diagnostics, system transparency, and ease of use.

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Thanks for using and testing FEMS Diagnostics 🙌

1.0.0 – Initial Stable Release

🚀 Version 1.0.0 – Initial Stable Release

This marks the first stable release of FEMS Diagnostics.

The integration is now feature-complete, tested, and ready for productive use.

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✨ Highlights

• 🔋 Advanced battery diagnostics for FEMS systems
• 📊 Context-aware evaluation of cell voltage spread (ΔU / ΔV)
• 🧠 Separation of raw values and interpreted system states
• 🚨 Reliable system status detection (OK / Warning / Error)
• ⚡ Combined REST + Modbus data integration
• 🧩 Dynamic entity creation based on battery configuration

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🧠 Smart diagnostics

This release introduces context-aware evaluation logic:

• Avoids false critical states at low state of charge
• Distinguishes between:
  • normal operation
  • warning conditions
  • real fault conditions
• Improves real-world usability and interpretation

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📊 Dashboard

• Optimized diagnostic dashboard included
• Clear visualization of:
  • system state
  • module spread
  • energy and battery metrics
• Additional user guidance directly in the UI

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🧪 Quality & Stability

• Full test suite implemented
• GitHub Actions CI
• Stable and reproducible behavior
• Clean architecture for maintainability

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⚠️ Important note

This integration is designed as a diagnostic and monitoring tool.

• ΔU / ΔV thresholds are based on general lithium-ion behavior
• They are not official manufacturer thresholds
• System states should always be interpreted in context

If you have concerns about critical conditions, always contact the official manufacturer or your solar installer.

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🙌 Thank you

Feedback, testing, and contributions are welcome!

0.2.7 – Stability & Diagnostics Improvements

Version 0.2.7 – Stability & Diagnostics Improvements

This release focuses on stability, diagnostics quality, and improved interpretation of battery data.

✨ Improvements

• Context-aware evaluation of cell voltage spread (ΔU / ΔV)
• Avoidance of false critical states at low state of charge
• Improved system status logic (error vs. warning)
• Added human-readable status states (e.g. low SOC, under load)

🧠 Diagnostics

• Separation of raw values and interpreted status
• More realistic system health representation
• Improved user understanding through better state classification

🧪 Testing & CI

• Full test suite implemented
• GitHub Actions CI added
• Stable and reproducible test environment

📘 Documentation

• Improved README
• Added detailed explanation of ΔU interpretation
• Clear disclaimer regarding manufacturer thresholds

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⚠️ This integration is still considered a diagnostic tool and not a replacement for official manufacturer diagnostics.

0.2.6 – Branding and integration presentation improvements

Version 0.2.6 – Branding and integration presentation improvements

This release focuses on improving the visual integration setup and preparing the project for cleaner branding support in Home Assistant.

Improvements

• Added structured local branding assets in custom_components/fems/brand/
• Added icon variants for standard and dark mode
• Added logo variants for standard and dark mode
• Improved preparation for Home Assistant brand compatibility
• Cleaned up integration presentation for future public release readiness

Notes

• Branding assets are now prepared locally for Home Assistant integration pages
• HACS brand icons may still require a separate submission to the official Home Assistant brands repository

0.2.5 – UI & Dashboard Optimization

Version 0.2.5 – UI & Dashboard Optimization

This release focuses on improving visualization, usability, and documentation.

✨ Improvements

• Redesigned diagnostic dashboard

  • Clear visual hierarchy
  • Compact module overview (ΔU)
  • Dynamic system status card
  • Reduced text-heavy sections

• Improved module diagnostics

  • Smaller, cleaner module cards
  • Color-based health indication (green / amber / red)

• Added minimal HACS-optimized icon

  • Better visibility in Home Assistant UI

📘 Documentation

• Complete README overhaul
  • Installation via HACS
  • Configuration guide
  • Dashboard setup instructions
  • Visual examples included

🧠 UX Enhancements

• Focus on diagnostics instead of raw data
• Removed unnecessary sensor lists from default dashboard
• Improved clarity for real-world troubleshooting

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💡 This release prepares the integration for a stable 1.0.0 release.

0.2.4 - Units, Scaling and Dashboard Consistency

✨ Version 0.2.4 – Units, Scaling and Dashboard Consistency

This release improves data consistency, readability, and dashboard usability across the integration.

🚀 Improvements

• Energy sensors now use kWh instead of Wh
• Charger voltage values are now correctly scaled
• Battery capacity display has been aligned with the updated unit concept
• Improved consistency of sensor values for dashboards and UI usage

🔧 Fixes

• Fixed incorrect charger voltage display caused by raw value scaling
• Corrected energy-related sensor units and value conversion
• Improved overall consistency between sensor values and displayed units

📊 Dashboard / UI

• Better readability for energy totals in Home Assistant
• Improved suitability for dashboard usage
• Cleaner basis for diagnostic and analysis views

✅ Result

This release makes the integration easier to read, easier to validate, and better suited for real-world monitoring and diagnostics in Home Assistant.

0.2.3 - Battery Module Configuration

✨ Version 0.2.3 – Battery Module Configuration

This release introduces configurable battery module support and improves handling of existing installations.

🚀 New Features

• Configurable battery module count (1–10 modules)
• Dynamic creation of:
  • Module voltage spread sensors (ΔV)
  • Cell voltage sensors per module

🔄 Improvements

• Sensor setup now adapts automatically to system configuration
• Reduced unnecessary entities for smaller systems

🛠️ Migration

• Existing installations are automatically migrated
• Missing battery_module_count is set to default (7 modules)

📘 Documentation

• Updated README to reflect configurable module architecture

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⚠️ Important:
After updating, please verify that the configured module count matches your real battery setup.

0.2.2 – UX & Structure Update

🚀 Version 0.2.2 – UX & Structure Update
✨ Improvements
Improved entity structure and logical grouping
Diagnostic sensors moved to EntityCategory.DIAGNOSTIC
Reduced default sensor noise for a cleaner dashboard
Cell voltages are now disabled by default
Module voltage spread introduced as primary health indicator
Improved binary sensor logic for system state (OK / Warning / Error)
🌍 Localization
Fully revised English and German translations
Consistent naming across all entities
📊 Dashboard & UX
Added recommended dashboard structure
Clear separation between daily use and diagnostics
Improved out-of-the-box experience
🧹 Cleanup
General consistency improvements
Code and naming cleanup

0.2.1

Update manifest.json

0.2.0

Update manifest.json