[New Device] Support for DMEGC M01 Balcony Battery

[fabicodes]

I am currently quite clueless on how to start with trying to add support for the above mentioned M01 Battery

This is the data section of the device entry at homeassistant

  "data": {
    "mqtt_connected": null,
    "disabled_by": null,
    "disabled_polling": false,
    "id": "bf6249513f58f18da6nthj",
    "name": "Balkonkraftwerk Batterie",
    "category": "cnsb",
    "local_key": "aRdyU9hrE:zOSw1z",
    "product_id": "mwllseqnhzar191l",
    "product_name": "Micro Battery",
    "online": true,
    "sub": false,
    "time_zone": "+01:00",
    "active_time": "2025-01-14T19:50:10+00:00",
    "create_time": "2025-01-14T19:50:10+00:00",
    "update_time": "2025-01-14T19:50:10+00:00",
    "function": {},
    "status_range": {},
    "status": {},
    "local_strategy": {},
    "home_assistant": {
      "name": "Balkonkraftwerk Batterie",
      "name_by_user": null,
      "disabled": false,
      "disabled_by": null,
      "entities": []
    },
    "set_up": true,
    "support_local": true,
    "data_model": ""
  }

It seems to have an RS485 -> TUYA Converter (a TSW-T211 Module)

There is a bit information available about it in this German forum thread

[azerty9971]

Hello,
Can you try following the following guides and reexport the device diagnostic please?
https://github.com/azerty9971/xtend_tuya/blob/main/docs/cloud_credentials.md
https://github.com/azerty9971/xtend_tuya/blob/main/docs/enable_all_dpcodes.md

Thanks in advance,
Azerty

[fabicodes]

Hey Azerty,

thank you for taking a look into it! Also had to renew my account to get it working
xtend_tuya-01JHQCY1WZ29P5Z607DPEM68Q4-Balkonkraftwerk Batterie-aeb6307007b80c1d2fd6b8cd61a08fd2(5).json

Kind regards,
Fabian

[azerty9971]

Since there are many entities and they don't really speak to me, could you temporarily share the device with one of my Tuya/Smartlife accounts? (This way I'll see what is what from the SmartLife/Tuya app)

If in EU:
[email protected]
If in US:
[email protected]

Thanks in advance,
Azerty

[fabicodes]

Sure, just shared it with you! (EU)

There are also a few Parameters I don't have a clue about. There are settings I can modify with a ridiculous range and Chinese description that don't even make sense when trying to translate them using Lens.

A charge and a discharge switch would be nice. It'd be nice to limit the current output - not sure if that's doable.

[azerty9971]

nice, got it, I'll implement it and release it in the next build ;)

I'll keep you posted ;)

Have a nice day,
Azerty

[azerty9971]

I don't see the device anymore in SmartLife, did you unshare it?

If so could you please reshare it with me?

Thanks :)

[fabicodes]

My bad, misunderstood your "got it".
The device has been re-shared

Thank you!