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 ...

We weren't able to verify the IP rating, and some homeowners in wet climates report corrosion inside the battery compartment. But if you live in a typically dry area, this motion sensor light ...

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 ...

Prior knowledge needed: ECEA 5340 Sensors and Sensor Circuit Design and ECEA 5341 Motors and Motor Control Circuits. Understand how to specify the proper pressure, force, strain, position, motion, ...