In a Linux environment, we can build robust server-client architectures using Sockets and multi-processing.

The Socket Communication Flow

Here is the lifecycle of a Socket connection:

In the world of embedded development, "Blinking an LED" is the equivalent of "Hello World" in software. If you can control an LED, you can control a relay, a motor, or even a nuclear launch silo (theoretically... please don't).

In Linux, there is a golden rule: "Everything is a file".