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CarettaBMS

CarettaBMS is the best price to performance battery management system and it’s also open-source.

User manual  Module calibibration  Firmware update  Expansions  Dev guide  Voltage measurement  UART  UART frame  Overview   

Vref_corrected = Vref * ( Vdmm / Vbms )

Vref_corrected … correction value Vref … ideal voltage reference value (1500mv) Vdmm … true cell voltage value measured with DMM (in mV) Vbms … voltage measured reported by BMS (in mV)