JBD AP20S003 BMS ...CAN and RS485, inverters are Rich Solar H-3000 48v

[CapnGimp]

I have a JBD AP20S003 BMS uses either of bluetooth CAN and RS485, my inverters are Rich Solar H-3000 48v units. Have a Pi3B+ I am now experimenting with and will get an expansion HAT 2chan canbus quick as I see you have it supported. Been watching the thread at DIY Solar for a while. Thanks a BUNCH! CapnGimp on forums, will update your thread.

[ai-republic]

OK, nice that you like it!
If you have any questions don't hesitate to reach out to me :)
Do you have a CAN communication protocol of the JBD BMS?

[CapnGimp]

No I do not but I will search for it today and answer you here quick as I can locate it.

[CapnGimp]

is this what you are looking for? https://cdn.shopifycdn.net/s/files/1/0606/5199/5298/files/JDB_RS485-RS232-UART-Bluetooth-Communication_Protocol.pdf?v=1682577935 it is a pdf file 6 pages long with charts first line is ( it is safe to download) .... Software board general protocol V4
One, physical interface
This protocol supports RS485/RS232/UART interface of Jiabaida software boardGeneral protocol, consistent with the host computer protocol, The
baud rate is 9600BPSOr other customer customized rates

[CapnGimp]

Here is a link to someone who wrote code like what you are doing, posted on github, just saw this haven't read it yet, could be sime good info for you... https://diysolarforum.com/threads/jbd-overkill-bms-monitoring.21817/

[ai-republic]

Thanks for the RS485 communication specification. That's enough for me to implement a RS485 binding. I just added the BYD and PACE BMS CAN bindings, so the JBD RS485 will be next :)

[ai-republic]

I have added the preliminary JBD support (currently without alerts). Could you test it and see if you get data from the JBD?
Please use the Configurator application and choose the JBD_RS485 binding as the BMS and NONE for inverter. Pleae also set the log level to debug. Thanks :)

[CapnGimp]

Thank you so much! I will order the CAN BUS for my Pi3B+ today and let you know the results ASAP.

[ai-republic]

@CapnGimp any progress yet? How did it go?