How to organize automatic lighting in the toilet?

and7ey2012-10-27 19:15:58

Do it yourself

and7ey, 2012-10-27 19:15:58

So that when a person appears, additional lighting (not the main one!) Turns on. Perhaps you need to purchase a passive infrared detector + LED strip? But what to choose? And how to connect? The detectors seem to be 220V, and the tape is 12/24V.

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10 answer(s)

fannt, 2012-10-28
@and7ey

The easiest option is to order a ready-made LED lamp with a motion sensor, powered by a battery, in a Chinese online store.

grishao, 2012-10-27
@grishao

You need to understand that there are motion sensors and presence sensors. As I understand it, in your case, it is the presence sensor that is needed so that the light does not go out while the person is in the toilet and does his business almost motionless. In Google, I think you can quickly find a suitable sensor.
Further, everything is quite simple, the sensor usually has a relay. You buy any lighting, if it is 12 / 24V, you additionally buy a transformer / LED driver. And in the break of one wire suitable from the network to the transformer, turn on the relay from the sensor (I strongly recommend breaking the phase wire, not zero, for safety). The main thing is to look at the power of the relay, so that it would be many times more (with a margin) of the power consumed by the lighting. Usually amps are indicated on the sensors, multiplying by 220V you can easily calculate the power. Happy connection!

lubezniy, 2012-10-27
@lubezniy

A motion sensor plus some kind of limit switch on the toilet seat and a time relay will save the father of Russian democracy. You can connect it through a relay, and then it doesn’t matter what the voltage will be - as long as the relay is designed for this voltage.

Atxmega, 2012-10-27
@Atxmega

The presence detector is a rather expensive solution.
It is much more profitable to use a motion sensor with a time delay.
The turn-off delay time is adjustable from 15 seconds to 30 minutes.
The installation allows you to use it as a regular switch
As for the low supply voltage - you will still power the tape through the power supply , here you will power the tape directly from the power supply, and the unit itself through the motion sensor

KuniLinux, 2012-10-27
@KuniLinux

2 motion sensors, on the controller - if the movement from 1 to 2 the light is on, if from 2 to 1 the light is turned off

lnx, 2012-10-27
@lnx

1. Capacitive relay. I do not know if there are sensors on the market that work on this principle.
2. An optical sensor (light source->mirror(s)->photocell), placed in such a way that a person will definitely be in its trigger zone.

sdevalex, 2012-10-27
@sdevalex

If you know how to solder, then the easiest way is to make a capacitive relay. There are 10-20 parts, you can not even make a printed circuit board for it.

elgordo, 2012-12-28
@elgordo

The motion sensor can be taken from any car alarm - they are sold at any car market at a price of 500 rubles and more. It is powered by 12v, the signal output is also 12v. When motion is detected, a level appears on the signal wire. Usually there is still a sensitivity adjustment on the sensor itself.
These sensors are capacitive and work very clearly. And most importantly, simple and inexpensive. :) Next, we connect it to the time relay, set the desired shutter speed ... And that's it. The time relay can be blinded on a transistor, relay, resistor and capacitor. It's elementary.

Alexey T, 2013-09-17
@Alexeyslav

How is the solution? Ready?
The simplest sensor is a reed switch and a magnet on the door. The signal from the reed switch passes through a D-trigger clocked at a frequency of 50 or 100 Hz, which removes possible contact bounce and enters the counting trigger (all this on one 561TM2) + time relay on 512PS1 (or generator + two 561IE10) configured for the maximum division ratio that will give an impulse after 20 minutes and will reset the counting trigger - this will prevent winding up of electricity from accidental operation, if it occurs at all - after all, when the doors are closed, the REED switch is CLOSED. the trigger output through the transistor controls the relay, and there is already whatever load you want.

Macinside, 2014-01-31
@Macinside

It's fun to sit on the toilet and wave your hand.
The presence sensor is definitely necessary.
The chipedip had spacer cartridges with a motion sensor for the lamp. In the corridor, the most it is, but in the toilet ...