homeassistant

So, we have an exhaust fan at the roof and it doubles as a kitchen hood fan. The controls used to be on the hood, similar on what you'd have on a cheap desk fan with buttons 1-3 and only one can be pressed at a time. Some time ago a plastic broke from the mechanism and it allowed two buttons to be pressed at the same time and it fried the transformer by connecting two of the different voltage outputs together. I just bypassed the transformer and there's now just a single on-off switch, so the fan is either off or at full blast.

Now we're remodeling the kitchen and I'd like to get smart controls on the fan, as it'd be nice to have it automatically turn on after shower or sauna to remove the moisture and obviously there needs to be controls in the kitchen to turn the fan up when cooking.

I've searched around but haven't found a suitable controller for it which would have any kind of digital input. Modern fans around here seem to have logic built in and they can be controlled either via propietary systems or via 1-10VDC control, but as the current fan works I'd rather not throw several hundred euros for a new fan and some more for modifying the existing mounts at the roof.

There's all kinds of triac-controllers which would do the trick, but all I've found have only manual controls. So, does the hive mind have suggestions on what I could use?

I haven't checked the fan, but I'm guessing it's few hundred watts at max and there's absolutely no smart features in it. Give it some AC voltage and it spins, that's it. I'm happy with either few pre-set speeds or full variable via triac/whatever. I've got home assistant with z-wave running, but zigbee/thread/matter is fine too as I'm planning a migration to newer standard. For control esphome is an option too, but for the high voltage side I'd like to get something proper from a reputable vendor instead of soldering something together or getting a solid state relay for PWM via aliexpress.