Firmware 3.0.0

3.0.0

Major New Features & User Experience Improvements

Complete UI/UX Overhaul

• New Modern Setup Flow:

  • Implemented a step-by-step wizard interface with progress tracking
  • Added visual feedback with icons and status indicators
  • Streamlined the setup process with better validation and error handling
  • Added timezone selection with automatic DST handling
  • Improved WiFi network scanning with signal strength indicators

• Redesigned Settings Page:

  • Created a modern sidebar navigation system
  • Organized settings into logical sections: Overview, Connections, Firmware, Advanced, etc.
  • Added real-time WebSocket updates for live data
  • Implemented dark mode support with persistent theme selection
  • Added responsive design for mobile devices

• Enhanced Connection Management:

  • Replaced basic checkboxes with modern toggle switches (Bootstrap-style)
  • Added switches directly on connection cards for quick enable/disable
  • Implemented unsaved changes tracking with confirmation dialogs
  • Added visual feedback for modified settings (yellow border/glow)
  • Save button appears only when changes are made

Robust OTA Update System

• Memory-Optimized OTA Process:

  • Implemented reboot-based OTA to maximize available heap memory
  • OTA now sets pending flags and reboots before downloading
  • Minimal services run during OTA to prevent memory exhaustion

• OTA Rollback Protection:

  • Added ESP-IDF rollback protection with automatic image verification
  • Dual storage of OTA state in both NVS and LittleFS for redundancy
  • Boot loop detection - automatically rolls back after 3 failed boots
  • 60-second stability check before marking new firmware as valid
  • Tracks boot count to detect and prevent boot loops

• Enhanced User Feedback:

  • Real-time OTA progress via WebSocket
  • Persistent loading overlay that survives page refreshes
  • Automatic page refresh at key points during update
  • Clear status messages throughout the update process

Security & Certificate Updates

• Updated TLS Certificates:

  • Added new root CA certificates for secure connections
  • Improved certificate validation for OTA updates
  • Enhanced security for cloud service connections

• JWT Authentication:

  • Implemented proper JWT token handling for API security
  • Added session management with secure token storage
  • Password-protected settings with session persistence

Code Architecture Improvements

• Major Refactoring:

  • Separated HTTP routes into modular files for better maintainability
  • Created dedicated modules for different functionality areas
  • Improved error handling and logging throughout
  • Better memory management with heap defragmentation

• WebSocket Implementation:

  • Real-time updates for power flow data
  • Live connection status monitoring
  • OTA progress tracking
  • Automatic reconnection with exponential backoff

• Task Management:

  • Improved FreeRTOS task coordination
  • Better synchronization with event groups
  • Reduced stack usage and memory footprint

Fixes & Improvements

• Critical Boot Issue:

  • Fixed crash when device gets IP address during OTA pending boot
  • Resolved mdns_group event group initialization order
  • Added skip_hostname_setup flag for OTA boot path

• WebSocket Stability:

  • Fixed WebSocket disconnection handling during OTA
  • Improved reconnection logic with better error handling
  • Added connection state persistence across page refreshes

• UI/UX Fixes:

  • Fixed "Check Updates" button to navigate to correct firmware section
  • Improved form validation and error messages
  • Better handling of offline mode restrictions

• Memory Management:

  • Fixed memory leaks in WebSocket handling
  • Improved heap fragmentation management
  • Better resource cleanup on task deletion

Technical Enhancements

• Network Improvements:

  • Better WiFi reconnection logic
  • Improved Ethernet support
  • Enhanced mDNS service discovery

• API Enhancements:

  • New redirect routes for legacy URLs
  • Better error responses with proper HTTP status codes
  • Improved JSON parsing and validation

• Monitoring & Diagnostics:

  • Enhanced logging with better categorization
  • Improved error reporting
  • Better system health monitoring

Migration Notes

• Users upgrading from 2.x will experience a completely new interface
• All settings are preserved during upgrade
• OTA updates now require a reboot cycle for safety
• Legacy URLs (/standard_settings, /ota, /offline_settings) redirect to new interface