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Add legacy protocol support #13

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syssi opened this issue Oct 28, 2021 Discussed in #12 · 4 comments · May be fixed by #14
Open

Add legacy protocol support #13

syssi opened this issue Oct 28, 2021 Discussed in #12 · 4 comments · May be fixed by #14
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enhancement New feature or request help wanted Extra attention is needed new protocol

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@syssi
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syssi commented Oct 28, 2021 •
edited

Discussed in #12

Originally posted by inorhan October 28, 2021
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

TX -> DD A5 03 00 FF FD 77
RX <- DD 03 00 1B 17 00 00 00 02 D0 03 E8 00 00 20 78 00 00 00 00 00 00 10 48 03 0F 02 0B 76 0B 82 FB FF 77
@syssi
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syssi commented Oct 28, 2021

https://github.com/jblance/mpp-solar/blob/master/mppsolar/protocols/jk232.py

@syssi syssi linked a pull request Oct 31, 2021 that will close this issue
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@syssi
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syssi commented Nov 1, 2021

Another document about the protocol:

https://github.com/NEEY-electronic/JK/blob/JK-BMS/Jikong-BMS-RS485-Communication%20protocol.pdf

@syssi syssi changed the title Add protocol v4 support Add legacy protocol support Nov 5, 2021
@syssi
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syssi commented Nov 5, 2021 •
edited

It looks like this protocol was used at the BMS firmware version <6.0.

@evil-dog evil-dog mentioned this issue Jan 30, 2022
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@syssi syssi added enhancement New feature or request new protocol help wanted Extra attention is needed labels Mar 5, 2022
@syssi
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syssi commented Mar 5, 2022

Help wanted: Do you own an old BMS version (<6.0) and are you sure your device supports the protocol mentioned above? For example: Your device is accesible using the jk232 protocol of jblance/mpp-solar and you want to move to a native ESP solution. Please provide some support/testing here!

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Add legacy protocol support syssi/esphome-jk-bms
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