Wi-Fi device detection

Used to be called "wardriving." Search that and see if you can find an ap or software for your phone/ laptop that will search. My laptop (Linux) already looks for wireless stuff, in the networking software

https://www.google.com/search?q=war...oAYgB0BSSAQQwLjE5mAEAoAEBsAEK&sclient=gws-wiz