Scientists in Germany have demonstrated a startling new form of surveillance: identifying people using nothing more than ordinary WiFi signals. By analyzing how radio waves bounce around a room, researchers can effectively “see” and recognize individuals — even if they are not carrying a device and even if their phone is turned off.
Yeah, if this shit has to exist, at least let me use it for presence detection in Home Assistant without having to buy separate sensors or something!
Probably just need a protocol to work with the data, however it can be interfaced with. Is it just measuring signal strength via speed over time?