v5.7.1

What's Changed

This is a "minor" release, that focuses on performance improvements, bugfixes and some new functionality!

Batteries

• BMW i3: SOH% and cellvoltages now mapped by @odlg in #249
• Bugfix: Remove Volvo battery writing to bms_status by @dalathegreat in #253
• Bugfix: Update header to get EGMP to compile by @dalathegreat in #250

New Features

• The board can now output CAN messages via USB Serial, for easier debugging by @dalathegreat in #248
• Improved LED handling - CLASSIC, FLOW and HEARTBEAT animations with lower frequency (50ms). These can be set via system_settings.h file, default is now FLOW
• Implementation of micro seconds timing macros for debugging performance - displayed in the web UI if enabled via USER_SETTINGS.h file ( FUNCTION_TIME_MEASUREMENT )

Housekeeping

• Add platformio serial logging by @kukumagi in #251
• Refactoring: Scalability and performance by @Cabooman in #252
• Introduction of a rudimentary hardware abstraction layer (HAL) to handle other boards
• Untangling of settings - config.h and various other settings have moved to any of: system_settings.h hw_lilygo.h or related implementation files (e.g. WUP_PIN -> BMW i3, for now)
• MQTT handling moved to its own task with slightly lower priority
• Include handling improved, most files can now include "src/include.h" to get the central settings/definitions
• An initial data layer is introduced in a moderate fashion, for Nissan Leaf power values and time measurements
• Mapping functions supporting mapping of some value in one range to the corresponding value in a different range
• Slightly improved compilation times by having preprocessor conditions on inverter code and charger code

Full Changelog: v5.7.0...v5.7.1