Raspberry Pi for automation of external blinds/room lights. Selection of components

Hello everyone.
My goal is to automate several elements of one room in the house using Raspberry Pi. In a nutshell I'm looking at: controlling the motor of an external roller shutter, switching on/off a lamp on the ceiling + motion sensor, measuring the light intensity in the room and measuring temperatures (inside and outside). Possibly shutting off the power supply at 2-3 sockets.

As far as roller shutter control is concerned, the programme would, for example: close the roller shutter in winter as soon as darkness falls and pull it down in the morning, in summer it would look a little different, for example: close the roller shutter up to a certain moment to prevent the room from heating up quickly, and at night after exceeding a certain temperature. All based on an external thermometer and light sensor.
As for the lighting, I'd like the light to come on when it drops to a certain light level in the room and only be on if someone is in the room. I think a motion sensor and a light sensor will suffice for this.

Now it's time for my (hopefully not compromising ) questions:
1. Will the motion sensor be able to detect a person sitting at the computer (without waving my hand every few seconds)? Which do you recommend (a room of about 12 m²) ?
2. Will the simplest Dallas 18B20 type sensors work for measuring temperatures?
3. Will something of this type suffice for measuring light intensity 3.1.18. It is forbidden to publish information to sources that expire after a certain period of time (publishing links to short-lived sites). Edit:

4. Can most roller shutter motors detect that it has encountered an obstruction (e.g. snow/ice/cat) or do you have to use additional sensors? I haven't bought the motor yet.
5. Relay module based on Songle SRD-05VDC-SL-C 3.1.18. It is forbidden to publish information to sources that expire after a certain period of time (publishing links to short-lived sites). Edit:
enough from switching on/off the power supply to the sockets and lamp? Is it suitable for hiding in the cable box?
6. What else besides the motor will I need to control the roller shutter?

Thank you all in advance for your help.

[retrofood]

Patryk800 wrote:

Will a motion sensor be able to detect a person sitting at a computer (without waving a hand every few seconds)? Which one do you recommend (room about 12 m²) ?

A simple PIR? Not likely to be suitable for something like this. Steinel supposedly has such detectors (mounted in offices that will detect even slight hand movement of a person working at a computer), they work within 360 degrees. At the demonstration stations this worked quite well. The cost is around £100/150/pc.

Patryk800 wrote:

Will the simplest Dallas 18B20 type sensors work well for temperature measurement?

As much as possible

In my opinion, for temperature measurement, Dallas sensors will calmly suffice.
As for PIR motion sensors, I doubt it.
SIEMENS seems to have worked on the subject of identifying the presence of people in rooms (even stationary ones - e.g. sleeping), and came up with a video sensor that detects human body temperature.

Hello
Why do you reject the standard PIR detector? You can take a signal, set the light on in the program for e.g. 15 min and in the meantime reset the time at the next signals. There is no force, in that time everyone will make some kind of movement. Unless he falls on the keypad but then you can already quietly turn off the light for him....
Czarek

texma wrote:

Why do you reject a standard PIR detector?

Because this is about a solution that will work for this application.
PIR is too weak. Well, unless in the case of amateur play. They can try the PIR to see for themselves that it doesn't work.
After this experience, they will come to the conclusion that the SIEMENS team of experts have got it right.

3-2-1-zwarcie wrote:

SIEMENS seems to have worked on the subject of identifying the presence of people indoors (even immobile - e.g. sleeping), and the result is a video sensor that detects human body temperature.

And are these sensors available to buy somewhere (and for how much)?
What area of the room do they cover - will there be blind spots with one sensor?

And wouldn't it be simpler to add a microphone? If the light sensor detects that it's getting dimmer, the motion sensor detects movement, then another sensor (microphone) detects that someone in the room is doing something, because there's no way you're not going to make movements the whole time you're in the room and still not make a sound. The Siemens solution is OK, but it is certainly not budget

Since we're rehashing old themes, Bill Gates showed a radio solution when showing journalists around his house a few years ago - each member of the household carries a card/passport, the receivers in the rooms identify the occupants and adjust the lighting and temperature scenery. A professional solution will probably cost a pretty penny, but you can create a similar system yourself using inexpensive radio automation components.

Alternatively, you can use devices that virtually everyone in most homes has. I.e. a phone/smartphone and Bluetooth configuration. This should also do the job.