That’s it. Microwave-based motion sensor board on top, controller board for LED ceiling light underneath. The power adapter is straightforward in that it accepts 100-240 Volts AC and turns it ...
As an example, [Circuit Valley] has an IKEA Vallhorn motion sensor for a teardown, it’s as you might expect, a passive infrared sensor (PIR) sensor coupled with a Zigbee interface. Inside the ...