What is an inexpensive PLC (Powerline communication) controller?

Question

Arduino

Hello. There was a need to transmit data through electrical wiring (220v). The project is based on Arduino-like boards. I need to use the main controller to control the light and other household appliances. At the moment there is only one idea: to build in PLC->Ethernet adapters for ~1500 rubles. for a couple, an Ethernet shield attached to an arduino and using this to control the relay, but it seems to me that ~ 1600 for such a pleasure is too expensive ... The minimum speed is needed. How can this be done as cheaply as possible?

Answer 1

The minimum speed for driving light bulbs is the X10 protocol. There are a lot of circuits on the Internet, no special microcircuits are needed, only MK + analog piping.
If you need a little more speed/features, check out the following PLC transceivers: KR1446XK1, LM567, TDA5051, ST7538/ST7540.