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    EEVblog #1014 – Masterlock Bluetooth Padlock Teardown

    What’s inside the Masterlock 4400 Bluetooth Padlock? Dave tests and investigates a particular magnetic attack ...

    • Worf

      To save everyone the time – the ebook is Amazon-only.

    • please please PLLLLEEEEEEASE Dave, do some Ebergy Harvesting Videos !!! 🙂

    • Energy that is… :-p

    • A VERY GOOD Dumpster Dive!
      Quite a useful device. Custom wallpaper anyone?

    • Warren

      I had a skywriter as a child. Its timing was controlled by a small metal weight that slid back and forth to open and close a circuit. It eventually wore out or corroded, so I replaced it with a mercury tilt switch from Radio Shack. Yes, you could still get those back then!

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