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Battery management system for up to 15 Li-ion cells based on bq76940 or bq76930 IC from Texas Instruments

Features (updated version 10/2016):

  • Up to 15 Li-ion cells (e.g. LiFePO4)
  • Power circuit on separate board (see Switch-N-Sense repository)
  • Balancing current approx. 150 mA
  • STM32F072 ARM Cortex M0 microcontroller
  • Built-in CAN communication interface and UEXT extension connector


  • Previous version was compatible to Arduino (based on ATmega 328P), but the processor was too small and didn't support CAN --> switched to STM32F072

(you can still find the old version by going back in the repository)