Open Source BMS Project

Looks interesting and im looking at the same IC to monitor my packs at home. Im using 14S and i have a plan to just use it for monitoring cells at a start.

And once again, another open source BMS project is simply abandoned.

Better late than never I guess. Here's the code I used for the demo.

I'll mention what happened to this project in a new thread.

There are many other AFEs available now, I would consider using something like BQ76940 or BQ76PL455A-Q1.

Linear also have some interesting devices such as LTC6812-1

Here's open source firmware for some chinese BMS hardware which uses the TI BQ76940: https://github.com/BotoX/xiaomi-m365-compatible-bms

BotoXbz said:

Here's open source firmware for some chinese BMS hardware which uses the TI BQ76940: https://github.com/BotoX/xiaomi-m365-compatible-bms

Click to expand...

Yeah, I saw that a while ago, I have one of those boards. It's great that there's an open source firmware available now. I am still interested in building my own someday as there are many features I want that the hardware doesn't provide (including small size, integrated bluetooth support, improved short protection) but I'm now working on a different but slightly related project which I've just posted to the forum.

flangefrog said:

Better late than never I guess. Here's the code I used for the demo.

I'll mention what happened to this project in a new thread.

There are many other AFEs available now, I would consider using something like BQ76940 or BQ76PL455A-Q1.

Linear also have some interesting devices such as LTC6812-1

Click to expand...

Dear Sir, I got the Arduino code .Can you share me the schematic of how to connect the Arduino pins to the MAX14921 Ic .Thanks