Is it possible to buy and use Z-Wave chips in Russia?

Question

Do it yourself

Interested in the topic of wireless communication for various devices.
WiFi is bad because the frequency is heavily loaded, and network scalability has some problems, and maintaining communication requires, in theory, a lot of energy. But the prevalence and availability of solutions like the ESP8266 makes life a lot easier.
At the same time, there is Z-Wave, which is good for everyone, but it’s just proprietary, which, moreover, you won’t find easily, and in order to program for it, you need to buy an expensive SDK and a board.
As far as I read in RuNets, everyone does their automation on the basis of already assembled ready-made devices that you can buy.
I just want to fasten the chip for receiving and transmitting commands, the logic above the transport layer (as well as some aspects of building the network topology) will be implemented by me.
Is it possible to use Z-Wave chips in your devices?
Is it possible to adequately apply them in crafts?
And where can I buy it for the right price?
Diskass and links to materials on the topic are welcome :)

Answer 1

Gag: In my opinion, in order to buy chips, you need to be a member of the Z-Wave Alliance community, and here the main problem is not that there are no chips in the rush, but that who the hell will sell them to you at all, only ready-made devices. Well, yes, as planarik wrote - the prices are not bad at all.
In my opinion, there are no analogues with the Mesh-network function . People use Arduino / Atmega - chips + radio kit (there is a hell of a lot, from ordinary radio to BT and Wi-Fi), but you have to write the protocol yourself (although there are also libraries). Well, in short, this is already an amateur, because. do the firmware yourself. But on the other hand, it’s budgetary - on aliexpress this stuff is in bulk. Yes, and there are a lot of vids on YouTube ( the first from the issuance of Google, for example )