BMS NOTES :- 1. CAN - Controller Area Network , the BMS controller reads the analog data from the sensors on the battery and processes it . Then the processed data is uploaded to cloud and can be accessed via CAN . If for some reason the data cannot be uploaded onto the cloud then it gets stored into the SD card provided on the BMS. 2. AFE - Analog Front End , this is basically the interface between the peripherals/sensors and the BMS controller.