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Louisvdw / dbus-serialbattery

Battery Monitor driver for serial battery in VenusOS GX systems
MIT License
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jkbms working with CAN interface #610

Closed IrisCrimson closed 1 year ago

IrisCrimson commented 1 year ago

Is your feature request related to a problem? Please describe.

Hi i have a running jkbms CAN version now running since more than 10 month. If I get write access to the repo I could provide my code.

Describe the solution you'd like

No response

Describe alternatives you've considered

No response

Additional context

No response

mr-manuel commented 1 year ago

You don't need to have write access to do that. Please fork the repository, add your driver to the jkbms_ble branch and then open a PR.

seamaster101 commented 1 year ago

@IrisCrimson what kind of JKBMS do you have? Do you know if CAN is an option for the JK_B2A8S20P BMS? Does anyone has interfaced that one?

pos-ei-don commented 1 year ago

@IrisCrimson, have you connected more than one bms with can? How do you Set the can bus ID? Very interesting!

mr-manuel commented 1 year ago

@IrisCrimson what kind of JKBMS do you have? Do you know if CAN is an option for the JK_B2A8S20P BMS? Does anyone has interfaced that one?

It's not integrated by default. You have to select the can option before buying. The script has to be updated to the latest version.

https://github.com/IrisCrimson/dbus-serialbattery/blob/30fb705d801ea88deac762c354457b130ca89f3f/etc/dbus-serialbattery/jkbms_can.py

mr-manuel commented 1 year ago

Please try the latest nightly from the dev branch. To enable CAN add CAN_PORT = can0 to the config.ini.

DirkReudenbach commented 1 year ago

Thats interesting new feature. Actually I'm running the BMS withserial driver via RS485 but I'd like to test it because of the trouble with USB Ports, My JKBMSes 4x B2A24S15P have RS485 and should have Canbus as well How do I connect this best to my Cerbo?

pos-ei-don commented 1 year ago

And how do you Set the canbus id?

mr-manuel commented 1 year ago

I have no idea, hopefully @IrisCrimson can answer that.

IrisCrimson commented 12 months ago

Hi regarding the CAN ID, as far as I know there is no way to change this. My solution was to build a small CAN gateway. Based on an old PRI version 1.2 B and several MCP2515 shields. I will push the script and the howto to git within the next days.....

Meanwhile i have as well tested the jkbms_can version Manuel merged to the dev branch. All my findings/fixes and some extensions that are needed to use more than one CAN bms at different CAN ID's could be found at following GIT Branch: https://github.com/IrisCrimson/dbus-serialbattery/tree/jkbms_can_2 Within this branch you could find as well the description how to build the needed can cable: https://github.com/IrisCrimson/dbus-serialbattery/blob/jkbms_can_2/docs/how_to_cable_jkbms_can_to_victron_can.txt

On top of that i created an master/aggregation BMS this I have pushed to following branch: https://github.com/IrisCrimson/dbus-serialbattery/tree/dbus-masterbattery -> Maybe this could fully merged into the dbus-serialbattery.

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I have no idea, hopefully @IrisCrimson https://github.com/IrisCrimson can answer that.

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