How to make a smoking detector? Which sensor detects tobacco smoke?

Question

Arduino

Neighbors smoke in the entrance, brings everything to the apartment. When it starts to stink at home, there is no one in the entrance.
I want to assemble a sensor so that I can "catch by the hand."
Recommend an inexpensive tobacco smoke detector. I heard that not all smoke detectors work for tobacco smoke.

Answer 1

If you just smell smoke through the door with your nose, then the sensor will not help, but if you place it on the site, then completely! There are two lines of sensors that work well. AX01 and AR01 . Both have chemical sensors.
AX01 - only senses combustion products - (CO). AR01 also has all sorts of side effects - alcohol, bleach. But AR is very sensitive! With an accuracy of 50%, even iqos can smell it. But AR has false positives, which in your case is probably not very important. These sensors are easily found on the Internet. Look with the letter M at the end - there the microprocessor compensates for the zero drift at the sensor.
It is not clear how you will present the sensor readings - they have no legal force. It is important for the court that the equipment is included in the GRSI SI, and you are a certified laboratory. :)

Answer 2

Assessing air quality with ams CCS811 sensor modules for arduina are sold on Ebay Take a
Google: "VOC sensor" / "VOC sensor"

Answer 3

We have developed a full-featured smoking warning system in the wrong places, which includes a number of devices that can process incoming signals from our detectors and display them on the operator's PC in graphical mode, indicating the exact location on the building plan where the detectors are installed.
The use of this system will prevent smoking in unidentified places and timely notify both the offender and the security service about the fact of smoking.
mdgroup.org

Answer 4

Replace door seal. Most likely this will be enough.
If the situation with the walls is very sad.
Split the interpanel seams on the wall adjacent to the corridor, foam the cracks (except for the places where the wiring passes), plaster. Pay special attention to the cracks under the baseboards and the places where the wiring enters the apartment, where the largest ones hide.
Anything is more useful than spending on "smart" toys - you can't kick everyone in the face, the police will pack the fastest ...

Answer 5

For starters, you can hang a leaflet "Do not smoke, [a fine of 1000 rubles] [children breathe this] [.. this part of the phrase is at your discretion ..]". If it does not help, then a video eye with a record on a computer / registrar for subsequent identification.

Answer 6

Dust sensor. Something like this https://amperkot.ru/products/datchik_pyili_sharp_g...

Answer 7

I also tried to catch smokers in the entrance and it was also useless. Sealed the door with foam (two doors per block) - nothing helped.
Smokers and dog owners are two absolutely hopeless categories of egoists who don't care about the quality of life of those around them.
Now, already in another apartment, I am trying to protect myself from the smoke that instantly enters my apartment from the balconies of smokers. To do this, I came up with a bunch of powerful Chinese ozonizer with a fan + controlled outlet. Because the fan in the ozonator is very noisy and I decided to install a smoke detector that will turn on the socket on which the ozonator will hang.
By the way, you need to take the most powerful generator, such as 60 grams per hour. On Ali, it costs about three thousand.