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 ...

The Rise of Smart Pet Health Monitoring As pet owners, we wish our furry companions could tell us when they’re not feeling well. But what if technology could bridge that gap? Pet immune motion sensors ...

and there are certainly no user-serviceable parts inside. Sadly, some bond wires got pulled loose when I was removing the PCB. When I put this one sensor stick back together, an area near the ...