With that under his belt, he opened up the PIR motion sensor unit to discover ... implement something useful in one of these gadgets: a ZigBee sniffer so that he can tell what’s going on in ...
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 ...
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