There are some notifications that I’d like to display on the LEDs of multiple Blue switches in different parts of the house. I’m hoping that there’s some way to do this with group scenes, but when I look at this in Z2M’s Groups page, it looks like if I was to create a scene there, it would also include the on/off state and brightness of each switch’s load, and not just the LED effect.
So is there some way to create a scene that only affects specific values and doesn’t touch others?
I don’t believe Z2M supports any of the led effects in scenes:
I’d be extremely interested to learn that I’m wrong, though! Unsure is this is a Z2M thing vs ZigBee spec.
You CAN create scenes that only update certain [supported] attributes of a device, though (documented in that link) e.g. I “pre-stage” my hue bulbs by setting a network-wide group scene that only tells them to change their color temp, but not to turn on or off. This way, bulbs that are currently on stay on and those that are off stay off (but will immediately be the correct color temp when they are turned on via a bound switch).
I haven’t tried it, but I see no reason it wouldn’t work: Z2M supports updating groups with anything you could update a single device with. I’m hitting the limits of my knowledge here quickly, though so don’t want to steer you in the wrong direction.
@euggersh were you able to figure out a solution? I have single switches set up to display effects while certain automations are running, but it’d be awesome if I could easily apply the effect to a group instead.
You can also technically combine this into one script, but zha sometime fails to send a command to a single switch. If it’s one script that causes the whole thing to fail. By breaking it out into another script only that single switch notification fails instead.