Hi all,
I recently switched from Amazon Alexa to Google Home and thought I'd share a pointer with you for dimming scenes.
First, a bit about my setup. I pretty much replaced every light switch in my house with Insteon switches and tehn used the ISY to group the various devices into Scenes that represent a room. For example the light switch, a few lamp controllers, etc are all grouped together into a scene (e.g Family Room). Then, on the UDI portal I exported that scene to Google Home so I can say "Turn on the Family Room" or "Turn off the family room"
What I can't do is dim a scene. This was explained in a few other forum posts as well as listed on the ISY Google Home Portal Integration. However, using IFTTT and shortcuts I was able to make this work.
On the UDI Portal I enabled IFTTT integration and then created a separate "Inbound" event for "Dim" and "Brighten". This then provided me with two URLs like
https://my.isy.io/api/ifttt/family_room_brighten/key/...
https://my.isy.io/api/ifttt/family_room_dim/key/...
Then in IFTTT I created two new Google Assistant actions and gave the command "Dim the family room", "Dim the family room lights", etc and then used the web hooks action to the URL above.
Works great!