marto thanks for your additional information and links.

I've just wanted to know if Serbian company MikroElektronika produces something with ESP8266 and yes, they produce "WiFi3" as a complete self-contained WiFi solution carrying that chip.

Indeed there are lots of options open to you.

Yes, I see there is so many possibilities about this. I don't know what way I will take with this first project, but I think during the time, including next projects too, I will try few ways.

Once you've had time to process them all please let me know which way you intend to go, or if you have further questions.

Of course, and thanks for offering additional help. When I have some results of my work I will give a feedback to perlmonks