Hi Guinnessimo,
Thanks paying attention to my project. Where am I? Well, ahead from my early plans. What was a curiosity to me is slowly turning to a real project... I showed the prototype to the CEO of my group 8-), and he is very enthusiastic... 
So that the publication of my works depends on the production of the project which slightly moved towards the concept of an "intelligent sensor" for environmental monitoring. I will let you know 