Recommend which wireless door sensors to buy for RaspberryPi?

Question

Do it yourself

I'm trying to assemble a simple monitoring system for an apartment.
I am good at programming, so the software part of the project does not scare me. However, I absolutely do not understand anything about hardware, receivers, transmitters and all that.
I set the following requirements for myself:
- A certain radio receiver should be plugged into the RaspberryPi, preferably directly, without soldering, without additional wires, and other details, if possible. I saw that there are simple 433Mhz radio receivers.
- wireless door sensors (there are a lot of them on Ali ), so that each sensor notifies its state of
the hardware configuration is given as an example (raspberry pi is required, everything else may be different)
Recommend specific hardware configurations, perhaps some assembly instructions, libraries that will need to be used.

Answer 1

Well, since the software side is not a problem, then look towards noolite, there you will find sensors and relays for controlling loads. They have a hardware whistle and sensors, raspberries will be the center of a smart home, with access to the network and what else you can wind up there, such as collecting statistics on the web of the
muzzle
etc.