Automatic bathroom light switching: motion sensor or presence sensor?

Hello everyone. I am directing this post to people who have installed automatic light switching in the bathroom. What solutions do you recommend from your experience. On alledrogo you can find presence sensors at quite a high price for me. There are also motion and "presence" sensors as described by the sellers for a few pennies. You can also make an optical barrier in the door frame and write a program which will count people entering the bathroom. The solution is a little more complicated but feasible. I have no experience with motion sensors and that is why I am asking what solutions you have at home. It may turn out, however, that motion sensor(s) installed in appropriate places in the bathroom can eliminate the problem of sudden lack of light while being in the bathroom and sitting on the toilet

Let it go. I have analysed various options. It is not worth it.

keseszel wrote:

It doesn't pay.

What do you mean ?

The simplest is door contact + relay . The first opening of the door turns on the light , the second opening turns off the light , and .... repeat .

brofran wrote:

The simplest is door contact + relay . First opening of the door turns on the light , second opening turns off the light , and .... repeat .

Yes just someone opens the door for you at the shave and you are cut )

I'm wondering about a barrier in the doorframe with two beams. at a small distance of maybe 5cm apart horizontally. Which cut this one informs the direction of movement of the person. Of course I am already considering some logic here(microcontroller)

I wrote - art for art's sake. Sensors, opto barriers are costs. There must be more expensive logic. Think for yourself...

There are too many dependencies and the circuit is complicated. Presence sensor and photocell + logic.

Added after 1 [minute]:

Possibly presence sensor, flap lowering and logic.

azibik wrote:

release flap

Guw...ka drop sensor , smell sensor , breath sensor ..... etc trinkets can be invented . Just what for .
And if the electricity goes off , you'll still get clobbered with a razor .

I don't intend to, but as matekogon wants to.

I would also add such a device as I saw in Switzerland in a hotel in Raperswil, where a toothbrush (similar but bigger) came out from the back of the toilet bowl and automatically cleaned, while spraying water on the end of the digestive tract of a citizen sitting on the toilet; fascinating, although I observed this mechanism for quite a long time, I did not fully understand the principle of operation.......A by the way: automatic switching on/off of lights in the bathroom is supposed to save kilowatts?

The pinnacle is the suppression of /electronic/ noises.

You have convinced me that the only sensible logic in the bathroom would be a switch on the wall I thought someone had installed some logic to the light in their bathroom though.

matekogon wrote:

You have convinced me that the only sensible logic in the bathroom would be a switch on the wall I thought that someone had installed some logic to the light in their bathroom after all.

Yes, it was the same guy who constructed the fountain watch. So necessary and helpful as incense to the dead.

Colleagues, let me also take this opportunity to ask for your opinions on glass touch switches anyone use?

A very simple flip-flop switch mounted in the door frame, opening the door lights up, closing it does not change the status, a second opening switches off, closing it does not change the status, a switch, e.g. from an old TV set, with an additional spring cushioning (protection against door slamming)

matekogon wrote:

Colleagues let me also take this opportunity to ask for your opinions on glass touch switches anyone use?

I used to use a tactile one although it wasn't glass. And I threw it away. It's good for playing with, not using.

Hello
I've been in contact with the system glass: http://www.nexwell.eu/produkt/nxw2974-wielofunkcyjny-przycisk-programowalny-tukan it works decently, but it's part of a system where we can choose how to switch on - longer, shorter hold, backlighting etc.
I was pleasantly surprised by the flush-mounted wall switch for RGB control - it is an independent device, a glass front plate - cost about 140zl. The sensor is very precise, the device works stably - although it did hang up once - lowering/lifting the S fixed the situation. Admittedly it's not a traditional light switch, but maybe dedicated ones exist for that too:
http://www.swiatlo.optec.pl/Nascienny-dotykow...4A-bialy-pod-puszke-podtynkowa-60mm-p408.html

aha - one downside - once closed it can be difficult to open without damaging the wall or the switch - I haven't had the need to remove it yet, I'm waiting to hear back from the seller.
The first switches shown have a great solution for fixing - with magnets - opening, closing a few seconds - but it's also a different functionality (temp sensor built in) and also the price x3.