In what language are smart home systems usually written?

Question

Programming

Good afternoon! What programming languages ​​are used in the smart home system? Let's say to turn on turn off the light, make devices for temperature control.

Answer 1

Distributed KNX network, parameterization in the ETS environment.
But there are many other protocols and possibilities (I, for example, program PLCs (freely programmable controllers, Codesys languages ​​(ST, CFC, SFC...))).

Answer 2

The most advanced system I've seen was mostly in Erlang. I suspect that they still programmed the controllers in C.
For now, Rust is a good choice, although not all esps are easy to set up.