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Support for new range of JK BMS (JK-PBx) #390
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Could you provide or ask the seller about some details about the supported protocols? |
I will contact them on Aliexpress to see what they can provide. I have ordered but not yet received. |
The hardware looks like a Seplos BMS. |
yes and the protocols for the RS485 / CAN busses should support multiple inverters as well |
I have received an example on the protocol from JKBMS, how ever I don't know how useful this is as the new parameters for e.g. the communication settings do not seems to be described |
Hi, |
I'm happy about every detail about the new models. Please provide as much input as you can. |
Hi, |
Cool! Could you provide some more screenshots (of the different tabs) of the |
I've extracted all Modbus requests from the capture above:
Conclusion: The request frames look like valid Modbus frames now. |
I just got two JK_PB2A16S20P BMS so busy getting them ready to test. Managed to get the JK Modbus protocol document however in Chinese but most of the important parts are english as well. |
I‘m to be anxious to get the esp32 run with this new bms. regards |
I have not tested the BT integration but it works through the same mobile app via BT. Not sure if the BT protocol is a different version but I assume most would work the same as the other BMSs. There is obviously a couple of extra features and values that will have to be added. I have done some initial testing with the RS485 using standard ESPHOME modbus components and it seems to work without any issues. |
Small sample of collecting SoC% via modbus
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Hello, have build esp32-ble for this new jk bms. regards. |
Happy new year 🎇 regards |
I have a jk-pb2a16s20p bms on v14.17, and would like to connect via an esp32 and ble and home assistant, have people managed to get it to work? Which yaml file to use? |
If you want to use BLE please try this one: https://github.com/syssi/esphome-jk-bms/blob/main/esp32-ble-example.yaml If you want to talk to your BMS using RS485 this is a first draft: https://github.com/syssi/esphome-jk-bms/blob/add-jk-pbx-support/esp32-jk-pb-modbus-example.yaml |
Thank you. And use protocol JK02_32S in the config? |
@silviudc regards |
Yes I got it to work, it is great. |
@testpaul999 @silviudc Could one of you increase the log level to |
The (for me) important parts of the logs for analysis later on:
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@silviudc Could you provide another log including the
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Hi, what is the new yaml for the new bms jk inverter ble? |
Are there any new sensors? |
Not yet. Do you miss something important? |
no yet tested |
Give it a try and create a new issue if you miss something! |
ok |
I am running into issues getting the PS
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Use |
The |
just to read the charge/discharge sensors
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or to control charge/discharge switch
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Can someone please share the wiring for RS485 with the new PBx series with RJ45 for esp controllers? Does it require some additional adapter? |
use RS485 bms socket - pin 1-B and pin 2-A. Wire to A-B adapter and then connect esp to RxTx to adapter and a separate 5v supply to GND and Vcc adapter. |
Awesome! Thank you so much @meccip 👍🏻 |
Hi, i m going to buy a Pb2A16S20P v15. |
If you use BT connection, you dont need adapters. Just use new esp with BT yaml file for jkpb series. You can add 15 jkpb in master-slave position. |
Thanks for the explanation..i should use which protocol for the pb into esp32? |
Thanks a lot |
Hi,
Do you have plans for supporting the new range of BMS's from JK e.g. JK-PB1A16S10P?
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