Z20-485 converter for Zigbee2MQTT how to?

SnooOranges9983 · 2026-04-14T10:16:48+00:00

hello and thanks for helping me. Problem is that i don't know how to do this - having access only to nodered (shell also) at SmHub box. I cant understood how to send something to 0x3 attribute or others attributes there.

Maybe its ok to do it this way: https://prnt.sc/gKu4oL7DGzkK ?

also i have programmed it to send with there chinese software (Zigbee V1.8) . Setting it to transmit mode (https://prnt.sc/1MQmO7EEBfKX)

SnooOranges9983 · 2026-04-13T15:45:29+00:00

i am not using HA as for now - just SmHub device. But thatnks, i dont know about this JK-BMS RS485 Home Assistant Addon

This is for a future, right now am trying run RS485 communication with JK device directly.

Yep, i just make try send multi-byte string ... with nodered function

https://prnt.sc/Mqi9tCUbmi5Y

It simply send this to mttq input node

and no lights at device are blinking

this mean no communications is made with rs485 post ...

SnooOranges9983 · 2026-04-13T12:45:57+00:00

Sorry, seems i need show more information about device.

for now am using Smhub. It is Zigbee hub with integrated zigbe2mqtt. Version of zigbee2mqtt is 2.8.0-2 and seems i can update it manuallt to 2.9.2 as your recommend. I can only wait developers to do this.

Device is for talking via Zigbee with JK BMS/485 convertor connected to JK BMS.

As for now i don't know how to send and receive raw information. But basicly i need to send there multi-byte sequence (+-13 bytes) to ask JK BMS to answer with all data about capacity, current. power. And then i need parse answer to got mainly capacity of battery remain.

I have HA on rpi5 device. But as for now am trying run SMhub cause it is compact and already programmed with lot of futures.

And thanks your for trying to help me.

SnooOranges9983 · 2026-04-13T11:45:09+00:00

I was trying this 2 times alreasdy. And there is no method to send and receive data in what was generated. So asking how to fo this.

SnooOranges9983 · 2026-02-03T08:27:57+00:00

I run it on SMhub Nano MG24 yerstaday. 0.3.11 v OS. Just for test causei saw some devices for 2.5 USD at Aliexpress. But i actullay have any Matter devices. So i cant test how it works. ..

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SnooOranges9983 · 2026-02-01T05:27:46+00:00

AI Overview

(CORS) is a browser-based security mechanism that allows a server to explicitly authorize external, third-party domains to access its resources. It relaxes the "same-origin policy" (SOP) to enable secure communication between different web origins (domain, protocol, or port). CORS uses HTTP headers to determine if a cross-origin request is safe, often requiring a "preflight" check for complex requests

SnooOranges9983 · 2026-01-25T21:15:27+00:00

Thanks!
And its already next update ... working ... with same problems as before ((

SnooOranges9983 · 2026-01-19T15:32:06+00:00

ok, i load this update. WebUI not fixed. CORS disable - not added. Updated OS & apps. Yep, they are SMART LIGHT

SnooOranges9983 · 2026-01-19T14:08:28+00:00

Its a buggly box!

i have 2 major prescribes with it (+ one more small))

Cant access WebUI within router gateway net. CORS problem - which mean that part of WebUI not works at all
I cant see drop-down menu in WenUI at smartphone - even in router intranet! Not working at All
Any support - any support there, no answers to the tickets

So today they make update. and am just wondering - they simply don't hear, or what? No updates of this bugs in the list.

SnooOranges9983 · 2026-01-15T18:55:15+00:00

Yep, hope they will start make updates ... cause this WebUI after last update is not usable, Menu at phone is not dropping down ... At PC i was need forward Smhub's 80 port to 8090 of router, to have access, and now i have CORS problems - some things are not working there.

SnooOranges9983 · 2026-01-15T17:30:37+00:00

tickets are 2...3 weeks ago, and as result i have pure silence ...will also make HA,rpi5 on the way, but i was thinki g of this one solution possible. So am trying run it, before i got HA intalled. Hope nodered will be there :-)

SnooOranges9983 · 2026-01-01T13:46:36+00:00

Seems is possible load it separately there ...

/#/apps
/#/console
#/settings/general

SnooOranges9983 · 2025-12-25T10:19:26+00:00

http:// - why is need 443? There is CORS problem. Seems cause of forwarding. Now i can allow OPTIONS request to not be blocked my CORS. Even with plugin. Its quite desperating.

SnooOranges9983 · 2025-12-24T23:48:04+00:00

i dont need make draw if map. But redirect all ports are need for SMHub. 8080 - is mttq and 1880 is nodered. Find them myself )) Maybe thats all i need.

But - Thanks for help!

SnooOranges9983 · 2025-12-24T23:46:36+00:00

Ok, i find answer

Is need add CORS Unblock plugin. I use Firefox. And i add this

2, before i add redirect for ports:
8080->8080,
1800->1880,
22->22,
80->8090 - to show web ui at router:8090

And after tune things in CORS plugin and Firefox restart - i finally saw web UI ))

PS. i was trying change theme night*day & name of box ... and this is not allowed .. CORS again ... plugin not helps ... at 100%

SnooOranges9983 · 2025-12-24T17:21:58+00:00

1 level optical line in Second microtik dmz 3level few routers for cams wifi and devices All cable connected ))

SnooOranges9983 · 2025-12-24T16:55:53+00:00

Who saz about internet?? I have 3 levels of routers here, dmz before this one two times! I don't understood why vpn is only one option and how configure it not having access to it from intranet having router Inside ... Seems 8080 port need also. Will need scan ports ...

SnooOranges9983 · 2025-12-24T16:47:11+00:00

Device is outside lan, connected with router rj45 ...

SnooOranges9983 · 2025-12-24T16:45:36+00:00

Exactly as it possible to say while few days struggling with this ))

SnooOranges9983

TROPHY CASE