I'm new to the raspberry pi device and I'm thinking about a project that involves tracking nearby mobile phones for analytics purposes.
This has nothing to do with listening to conversations or any illegal activity. I just want to KNOW if somebody is nearby by counting anonymous visits to a certain place. Furthermore, I'm not willing to violate user's privacy by identifying them personally.
What is the best way to do it?
I thought about tracking them through probe requests that their devices periodically send. But there's probably another better way.
For those questioning that its possible: 1) https://null-byte.wonderhowto.com/how-to/log-wi-fi-probe-requests-from-smartphones-laptops-with-probemon-0176303/ 2) https://www.yetanotherblog.com/2014/03/25/tracking-devices-via-raspberry-pi-part-two/
Thank you in advance