alt Hacker NewsPresence detection without the possibility of images being captured seems a reasonable application to me. So much the better if I could do it with hardware I already have versus installing motion detectors or other sensors.
Presence detection without the possibility of images being captured seems a reasonable application to me. So much the better if I could do it with hardware I already have versus installing motion detectors or other sensors.
RF human detection sensors ((that can even tell you the heart rate of someone in the room (if its below 120 I think)), cost almost nothing. Or at least they did before tariffs .
They can also be programmed to detect people on the floor, so if you have elderly in your house you can know if someone fell, without cameras. They are made for hospitals but are cheap, but not 100% accurate for HR and falls, but reliable enough for security, and cheap.