At my sailing booth I’ve a LifePO4 battery system with a BAT BMS monitoring system, with a mobile application I can make a Bluetooth connection to check the battery status. Would it be possible to make Bluetooth connection from the Cerbo platform running on a Raspberry Pi so that I remotely can check the battery status? Suggestions?
Natively (out of the box) no.
Yeah. Usually it involves a search on git hub. Or write your own driver.
There are a few guys on git that have shared their BT connection BMS drivers.
Check
dbus-serialbattery has bluetooth support and you do not need a second Cerbo/Raspberry Pi
Thanks @fredvduin for your suggestion, I will check the links. The first question that comes to my mind, is that solution BMS brand agnostic? Of does this only work with the JKBMS? As the battery I’ve installed is using a BAT-BMS solution.
The answer will be try and see. Unless someone has tried your exact model and FW version (and sees this post to answe you).
If the bms you are using uses the same addresses for its information it will work. It wirks across many different manufacturers.
The second isuue you will face is knowing which pin outs on the bms ar can h and can l. Maybe a short chatvwith the seller/manufacturer will hep there - unless the manual already states that.
In any case if it doesn’t you can reset the GX to factory and start again so you won’t have cost anything but a bit of time.
Thanks for your feedback @lxonline But the only connection to the battery I can make is via Bluetooth, similar as I’m doing via the mobile application on my phone. It is not possible to make wired connections! So I’m not sure if I understand your comment about: “knowing which pin outs on the bms ar can h and can l“!
I’ve a Raspberry Pi with the VentosOS running to which I will add the Bluetooth driver and then I will try to connect to the BAT-BMS and see what is going to happen. Will take a couple of weeks as this setup is at a different location than my house.
My apologies.
I skipped a part in my thoughts. You won’t be needing to know the cable then for your use case.
Sometimes we have started with the BT and then swapped to the can as there can be drop outs on the bt.