Actual power to HomeKit

[WimBel]

hi,
i've got a codesys PLC (on a rasp-pi) that controlls my house. With OPC UA, Node Red and this plug-in I managed to controll all the lights with HomeKit. Thanks to all the guys who develloped this. I've used openhab + homebridge in the past and I have to say that node-red + the plug - in are a lot easier to work with.

My PLC is also measuring voltage and total current of my house. I want to see the actual power my house is "using" in homekit. But it's not clear for me how to do this. I can get the values in Node-Red with OPC-UA. Is it possible to "send" these to homekit?

I found the PowerManagement type in the plug-in, but it's not clear for me how I should use it + HomeKit is saying that the type is not supported. Does somebody has an idea how to make it work (if it's possible).

Thanks in advance!

[Shaquu]

I do not recall any Service that can be used for power consumption in vanilla HomeKit.
So there are 2 options in my opinion:

1. Use other service to mitigate, for example some temperature sensor (except it will just display raw number without kW).
2. Using our latest dev and Eve app you could gain new options of displaying it properly, but only in Eve app.

@crxporter any thoughts?

[WimBel]

Hi,
Thank you for the quick answer! I will take a look at the two options.
Is it possible to send me a link to the dev I should use with the eve app?
Thanks!

[Shaquu]

First of all join our Discord server to chat live with us.

https://discord.gg/hxFMa3js

Regarding dev it is released as dev tag on npmjs. Feature you are looking for is Custom Characteristics #52 (it will be require to pass special flag to node red to enable it NRCHKB_EXPERIMENTAL=true).