BeHappy

Thanks. I did a search and found it just after I posted. Costs more than most of the actual devices

@msgreenf Really? Tell me more! Which devices? Are there drivers?

Been doing this myself. Had C4 installed when the house was built but have installed Home Assistant. C4 only shows the lights to HA but HA directly integrates everything else I have in C4 apart from my alarm system. HA also integrates with a whole bunch of stuff that C4 won't talk to (e.g. the cheap Tuya devices). I've used HA to do a couple of automations based on occupancy (when all the mobile devices have left the home) and it works great. The main thing I want to figure out is how to fade the lights in and out on HA like they do with C4.