HomeWizard Battery plugin

[fdemees]

API v2 gives you more options

Indeed.
/api/batteries is an API V2 command which works only with the P1 dongle. It is unsupported in API V1 and does not work with the batteries themselves.

The batteries have their own API: /api/measurement , but this is only a reporting function.

If you want to interact (e.g. charge only, discharge only, stand by) you can only talk to the P1 dongle and it will treat all batteries as a global entity.

[mvdp]

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I have tried HomeWizard-Battery-plugin > examples > dzEvent.lua from @mvdp
(https://github.com/etmmvdp/HomeWizard-B ... zEvent.lua) which returns errors.
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error messages:

Code: Select all

2026-06-10 15:19:30.487 Error: EventSystem: Lua script dz HW Batteries total did not return a commandArray
2026-06-10 15:19:30.495 Error: EventSystem: Lua script dz HW Batteries total did not return a commandArray 
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Moreover this value (48.295 kwh) is useless as a source for generating the energy dashboard.
Instead, the 5th field in the array provided in the "Total Power" contains the useful data (280 watts). The sum of all 3 batteries could be used.
(I don't know how to handle these arrays in scripting - sorry).
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Hello Frédéric,

Thanks for the feedback. I'll address your questions and remarks:

* Did you change the device numbers for the batteries in the lua script?
I.e. the values 1827, 1828 should be adapted to the device ids used in your setup. Also, the script has to be wrapped in "return
{ ...}" block. That part is missing from your code block.

* Next, regarding the `Batteries Active Power` remark, this is a field that is returned by the api. I don't want to hide it from the users.
* The usage of the v2 api is considered, but the interface you provided is for the P1 dongle, not the battery, as suggested in the feedback by