I'm sorry for banal question.
I would to insert every second the wifi signal strenght on a database.
There is a way to read it from my custom script ?
Please keep in mind we do not support scripting, there are forums and groups dedicated to this type of inquiries, depending on the tools and operating system you use for that purpose.
From the scope of Intel® Wireless Adapters, we can let you know that in Windows* there are some commands you can use to obtain the signal strength, among other data from wireless networks:
netsh wlan show interfaces
netsh wlan show networks mode=bssid
Scripting and inserting/extracting data on databases is not within our scope, however, we hope this piece of information will be helpful.