Use NFC To Unlock Your Android Phone Just By Picking It Up

Near-Field Communication (NFC), is useful for lots of things, such as automatically unlocking your Android phone when you pick it up. You can wear your tag like a ring, or even paint it onto a thumbnail. Adafruit’s Becky Stern explains how in this video.

We’ve shown you how to unlock your computer and automate rooms in your house with NFC — there’s no reason that your phone shouldn’t also be able to know its you as soon as you pick it up. Luckily, it’s easy to set up if you have the right components. Becky Stern (who just stopped by for an interview you should read) walks you through the project in the video above.

You’ll need a phone that supports NFC (and most popular Android phones do), and an NFC tag to unlock your device. You’ll also need to root and customise Android to support polling for NFC on-power, as opposed to after-unlock, but the Adafruit Learning System guide below explains how to do all of that. It also includes the APK required for the tweak. All you’ll need to do once you’re rooted is install it.

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