How to make a controlled outlet (220 W)?

Question

Electronics

I would like to make some semblance of a smart home. Despite the fact that ready-made solutions are extremely expensive, I decided to do everything myself. I decided to control everything through Raspberry-pi, via wi-fi or radio ( it is not possible to pull the wires ). Accordingly, a server with an API will be launched on Raspberry-pi, which will be accessed by a mobile application. The main tasks so far are the management of light and sockets. For light, I decided to use nooLite wireless switches.
But with the sockets there were problems. There is enough functionality for the outlet, on / off. (if there is a dimmer, then it's also good). I thought about finding some small 220W relay with built-in control via radio signal to build it directly into every outlet, but it didn’t work out.
I came across managed uniel sockets , but there is no open protocol for them. Accordingly, it will not work to manage them through Raspberry-pi (as far as I understand).
Tell me, is there any way to control sockets from uniel , or are there any other solutions to this issue?
I would like the price of one outlet to not exceed 500 rubles.
UPD: I would like the control module for the outlet to withstand 2.5 kW. For example, so that you can connect an iron.
UPD2: I found an article that tells how you can control uniel socketsusing the radio module and the RCSwitch library. For now, this remains the preferred option. But I would like to somehow still build the controller into the outlet.

Answer 1

For arduino there is a library RC-Switch , with which you can organize the control of sockets on the radio. It is possible that the specified uniel also works on a compatible protocol. Another option is to use the Noolite system - you can build power modules into sockets and control them using their "USB whistle" connected to a Raspberry or a regular PC.