Check out this great post from Faraday’s Club.
I decided I would try to play with one of the new features and make a simple WiFi detector. I am a big fan of the Best American Non-Required Reading series, which used to have a front section that included some of the most creative WiFi names around. I was certain that there would be some fun names in my neighborhood, so I thought I would use my Pi3 as an SSID ‘sniffer’.
Since the WiFi is built in to the Pi3, I can strip this project down to just the Pi and a 5V cell phone charger.