Doesn't work with JK-B2A24S20P

[inorhan]

Doesn't work with JK-B2A24S20P HW 8.X SW 8.1.2H version 3.7.1 Manuf date: 2021

Looks like these new units use: https://raw.githubusercontent.com/jblance/mpp-solar/master/docs/protocols/JK-Jiabaida_communication_protocol_v4.0.pdf (9600bps)

Would it be possible to include this new protocol ?

Keep the great work!
Regards

[syssi]

It looks like the protocol has changed multiple times. I'm also aware of some people having a pretty old version of the BMS which aren't able to use this component right now. Thanks for the document! I will have a look what needs to be done to support your device.

[syssi]

Did you try to to query your device via "mpp-solar" using the jk232 protocol? I want to make sure your device is talking the v4 protocol.

[inorhan]

Having problems with my serial port using Proxmox ... jkbms -p /dev/ttyUSB0 -P JK232 -c getBalancerData : Serial read error: Could not configure port: (25, 'Inappropriate ioctl for device') Will keep trying.

[inorhan]

jkbms -p /dev/ttyUSB0 -P JK232 -c getBalancerData
Traceback (most recent call last):
File "/usr/local/bin/jkbms", line 8, in
sys.exit(main())
File "/usr/local/lib/python3.8/dist-packages/mppsolar/init.py", line 408, in main
results = _device.run_command(command=_command)
File "/usr/local/lib/python3.8/dist-packages/mppsolar/devices/device.py", line 333, in run_command
decoded_response = self._protocol.decode(raw_response, command)
File "/usr/local/lib/python3.8/dist-packages/mppsolar/protocols/abstractprotocol.py", line 439, in decode
data_name, value, data_units = self.process_response(
File "/usr/local/lib/python3.8/dist-packages/mppsolar/protocols/abstractprotocol.py", line 156, in process_response
r = eval(format_string)
File "", line 1, in
File "/usr/local/lib/python3.8/dist-packages/mppsolar/protocols/protocol_helpers.py", line 95, in Hex2Int
answer = hexString[0]
IndexError: index out of range