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 may receive a commission on purchases made from links. A smart home is a convenient home. When you have smart devices handling things around the house and automating tasks for you, you barely ...

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 ...

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 ...

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, ...