Kelvin adjustment in home app

[FalconEVO]

I am currently using this plugin to control my white bulbs via the home app. It is working well for brightness, but has no way of adjusting kelvin. It looks like this is supposed to be a supported feature, but I wanted to check before I dig into things too far.

Thanks!

[devbobo]

@FalconEVO I don't have access to the thread but Lifx themselves said that Kelvin setting is kind of a calculated field, a mix of saturation, color and brightness.

The Home app supports a whites type setting but not in the sense of settings kelvin value.

If you go into the Color setting in the Home, and click the Edit button in the middle. A new screen is shown with "Colour" and "Temperature" tabs. The temperature tab is the one where you set a tradition type kelvin-ish setting but with a colour wheel not a value.

I've actually been considering removing the Kelvin value or at least adding it by default.

Hope that helps.

[FalconEVO]

The only setting I see is brightness.

[steve228uk]

:+1: For this. It seems like the white only bulbs don't get the colour adjustment and not seeing a setting to enable it.

[devbobo]

I don't have any white bulbs to test, I may need to pick one up.

[steve228uk]

I believe it may be due to the lack of Characteristic.Saturation not being included for the white bulbs in Index.js. I'm currently building a plugin for another platform and without that the colour wheel will not show even if hue is set.

[devbobo]

@steve228uk i suspected as much, I've ordered a white bulb and it should be there early next week when I get home from the US

[fiddypal]

I am having the same problem. Can turn bulbs on/off and varying percents using Siri or the home app just fine. But do not have a color option and Siri does not understand when I ask to change color or degree. These are color bulbs and I am forced to use the LIFX app at the moment for colors.

[devbobo]

I chatted with khaost about this issue, apparently the home app is using a HSB value to simulate color temperature (aka Kelvin). So that option will never appear if the hue characteristic isn't defined.

[vertig0gitrev]

@devbobo - Any luck on how we generate the config?

[devbobo]

@FalconEVO @steve228uk @fiddypal @vertig0gitrev version 0.2.4 should resolve this issue. Color temperature is now supported, though I should mention that the Home app/HomeKit defines ColorTemperature in mireds rather than kelvin....so you will need to work out the mapping from kelvin to mireds if you want to give siri a specific value

https://en.wikipedia.org/wiki/Mired