The "Original NR Flow *.json" files ares a fork of pacmanmt/jkbms. Other files are my attempt to make it suitable for my environment.
Be sure to select UART protocol = '0' (GPS) in the bluetooth app. This was tested on a B2A8S20P with appropiate Jikong adapter for 4 cells; called the "Low voltage" version and a RS485 to USB adapter.