Pssst – want some high tech protection for your home office, or a secret lock for your “workshop” (ok, you got me, it’s actually a dungeon/gaming room) that the kids won’t be able to figure out? We’ve got you covered. Let’s build a DIY smart lock that automatically detects when you’re there, and locks when you’re not. How does it work? NOBODY KNOWS! Or more specifically, Bluetooth. The Concept Your smartphone is a powerful device that’s constantly revealing information about itself to the outside world; one way it does this is Bluetooth. In discovery mode, it broadcasts a unique identification number –...
Read the full article: Make An Auto-Locking Office Door with Smartphone Proximity Sensor
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