Partial summary:

-ESP32 based device that tries to detect bluetooth/MAC addresses of flock cameras and beeps when it does

- a Stingray detector that runs on a second-hand mobile hotspot

- a device that alerts you about things that are moving approximately with you (AirTags, SSIDs, etc).

> ESP32 based device that tries to detect bluetooth/MAC addresses of flock cameras and beeps when it does

Is it this thing?

https://simeononsecurity.com/articles/flock-you-detection-pr...

The last project is this, it actually does a lot more.

https://github.com/Em3ritus/simulacra

Cool, I like the esp idea but won't you have to walk fairly slowly with a default ESP antenna? High gain might be better.. If you're wearing a cap you may not care as much being seem from above vs from the front. Maybe attach a little windspeed meter to the top of the antenna on your hat too ;)