https://github.com/EnnoidMe/ENNOID-BMS

Open-Source: Modular BMS based on LTC68XX & STM32 MCU for up to 400V EV battery pack
https://github.com/EnnoidMe/ENNOID-BMS

batteries battery-management-system bms powerwall slave-boards

Last synced: 3 months ago
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Open-Source: Modular BMS based on LTC68XX & STM32 MCU for up to 400V EV battery pack

• Host: GitHub
• URL: https://github.com/EnnoidMe/ENNOID-BMS
• Owner: EnnoidMe
• License: gpl-3.0
• Created: 2018-02-20T23:24:58.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2021-07-19T14:52:01.000Z (over 3 years ago)
• Last Synced: 2024-06-11T17:42:42.689Z (5 months ago)
• Topics: batteries, battery-management-system, bms, powerwall, slave-boards
• Homepage:
• Size: 141 MB
• Stars: 209
• Watchers: 25
• Forks: 66
• Open Issues: 8
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• open-sustainable-technology - ENNOID-BMS - Open Source: Modular BMS based on LTC68XX & STM32 MCU for up to 400V EV battery pack. (Energy Storage / Battery)

README

        
# ENNOID - BMS

ENNOID-BMS is an open-source configurable battery management system consisting of a Master board based on an STM32 microcontroller connected through an ISOSPI interface to several modular slave boards. ENNOID-BMS can monitor the specifics temperatures, currents & voltages that are critical for any lithium-ion battery packs. Based on the monitored inputs & the configured parameters, the master board can allow or interrupt the flow of energy from the battery pack by switching the state of external heavy-duty contactors. ENNOID-BMS can measure each cell voltage level & can trigger the passive balancing function during charging for cells above the configured limit to ensure that all cells have a similar State-Of-Charge (SOC). Parameters can be configured through the ENNOID-BMS-Tool software running on a USB connected host computer.

## Ordering:

For ordering assembled BMS or battery packs, please visit:

https://www.ennoid.me/bms/gen-1

## Documentation:

https://blog.ennoid.me/

## Block diagram

![alt text](Master/LV/PIC/Wiring-LV.png)

The evolution of the BMS can be followed on this thread:

https://endless-sphere.com/forums/viewtopic.php?f=14&t=92952

## Features:

- Modular with master/slave topology

- 12S, 15S & 18S slaves board options

- Master board options: High Voltage (Master-HV) & Low voltage (Master-LV)

- Up to 500A continuous operation

- Integrated bi-directional current sensor

- 12V drive coil outputs for charge,  discharge & auxiliary circuits

- Communication between slaves & master through a two-wire daisy chained ISOSPI interface

- Isolated CAN bus interface 

- Isolated charger detection circuit

- Voltage measurement for battery pack & load

- Build-in precharge circuits

- USB interface for programming and firmware upgrades through an easy to use graphical user interface

- OLED Display, serial output & power button

- 0V to 5V cell voltage operation

## Documentation:

[ENNOID-BMS Datasheet](https://github.com/EnnoidMe/ENNOID-BMS/blob/master/Datasheet.pdf)

## Software:

![alt text](PIC/Tool.png)

ENNOID-BMS GUI configuration tool:

[ENNOID-BMS tool](https://github.com/EnnoidMe/ENNOID-BMS-Tool)

## Firmware:

ENNOID-BMS firmware .bin file:

[ENNOID-BMS.bin](https://github.com/EnnoidMe/ENNOID-BMS-Firmware)

View this project on [CADLAB.io](https://cadlab.io/project/1987).