This project involved making a Pi-Hat with Microwave Radar, which is meant to be used with a Raspberry PI (3B+ or 4B). The device will detect movement within a radius of 12 feet (4 meters) from the device with a spherical detection region. It is meant to draw a line in the sand so you clearly mark instrusions. This is different from a camera which has so much noise from everyday activity that you cannot actually tell if you have an intrusion.