Bathroom fan automation: switch with light and moisture sensor?

Hi,
I have a request for the experienced forum members.
I’m just starting out with home automation. So far, I’ve got HA and a Zigbee flush-mounted switch for the staircase light.

I’d now like to automate the fan in the bathroom and toilet.
This is where my question comes in. Is there a switch available with a built-in light sensor and, if possible, a humidity sensor?

Focusing on the toilet. My requirements for the fan are:
when the light is switched on, ‘switch on’ (my toilet has no external windows, so switching on the light is a sufficient signal that the fan should be switched on)
when the light is switched off, “wait for the set time and switch off”
A simple enough task, assuming we’re dealing with a completely non-smart fan.
One light or presence sensor + some sort of switch, e.g. a SONOFF Basic.
And although I don’t currently know how to connect it all up to make it work, I reckon I’ll sort it out… step by step.
The problem is that there are a lot of components, each one looks different, and each one needs either a battery or a cable. Generally, it doesn’t look very attractive and I’d have to get creative to hide it all away.
In the bathroom, I’d need additional data, such as air humidity. So, an extra sensor.

Is there a switch with a built-in sensor? I don’t know – something with a 230 V input and an output that’s controlled… depending on various parameters… e.g. lighting, humidity, etc.
Provided, of course, that… the price is reasonable… Or is the only option between some expensive smart fan or a makeshift setup using sensors?

Many thanks for your help.

Do you have a false ceiling?

>>21424790
Not in the loo, but partly in the bathroom.
Actually, you’re right – in the bathroom you could fit it into the suspended ceiling, although that would require a bit of rebuilding on my end, but in the loo, it’s a no-go.

In a suspended one, you pull the wires from the lamp to the grille and don't have to automate anything.

Why any smarts here at all? After all, there are fans with a humidity sensor, with a timer. Ready-made solutions, simply connect to the lighting.

and the spell was gone but you know, it would be ..smart ;P
well, maybe I'm right, maybe I've overcomplicated a simple thing and want to make it more complicated

>>21425185 I think it is possible to make such a switch myself, using Arduino or ESP, but is it worth it, and you need to have the time to mess around with it.

Grzegorz214214 wrote:

but you know, it would be ..smart

Would you like to use it or brag about it? Because you see - when I start the car, the radio comes on. And I don't care whether it's a smart or an ordinary relay, the important thing is that it turns on, which means it works.

Soon it will be smart cisterns that analyse how much of what is in the bowl and a microprocessor will calculate the amount of water needed to flush it heh.

>>21426327 .
There are already such flush toilets . As well as toilet seats that "talk" to them,and even serve music depending on the mood of the bottom.

And the toilet probably distinguishes and analyses whether Mr Dot or his wife has sat down. I have nothing against amenities. But many are simply an embarrassment.

Exactly so,Sedes analyses. My wife used to work for a company that designs and distributes this.
She'll rinse the back of it,remember the water temperature,sing it,dry it and even illuminate it.
You're right,it's embarrassing.

After a certain limit, the house can already become so intelligent that it considers the owner to be dumber than it is and does not let him in.

Flat block or detached house ? As a general rule, forced mechanical ventilation is not allowed in blocks/apartments .

A friend installed such a fan. The effect was that it was blowing half the night. In the morning he went into the bathroom and did a triple flip on wet tiles. Somehow when there was gravity ventilation for 50 years there were no problems.

paszczakq wrote:

A friend installed such a fan . The effect was that half the night he blew . In the morning he went into the bathroom and did a triple flip on the wet tiles . Somehow when there was gravity 50 years there were no problems .

I do not understand why the working fan could cause moisture in the bathroom tiles?

Because the ventilation shafts in a block of flats are shared.If you pressurise the chimney, your neighbour loses his ventilation.
You will make him fungus,or even poison him by injecting various gases.

Yes, that’s right. In a block of flats, if someone has designed a gravity-fed ventilation system, switching on a fan in one flat could cause excess air to be forced out of a neighbour’s flat. I don’t know if it would go so far as to let damp seep through, but the fact is – generally speaking, you shouldn’t do that.
I live in a house, so I don’t have that problem.
OK, thanks for the replies. I’ll fit a standard fan with a delay switch in the loo; in the bathroom, I’ll probably have a bit of a play around… perhaps it’s style over substance, but the word ‘play’ is key here