Today, there’s no need for a spare key—or a key at all in most cases. With an Internet-connected door lock, kids can punch in their personal code to unlock the door or use their smartphone to send an ...

College students have returned in droves to dorms and apartments at campuses everywhere. So this is the time of year we usually start seeing some coded entry hacks. [Charmonkey] recently took on the ...

Locking up your home doesn’t have to involve fumbling for keys anymore. Smart door locks have become a popular home upgrade, ...

[Jeremy Blum] wrote in to share his LibeTech QR Code Door Lock project. He developed it during his Senior year at Cornell University along with three of his classmates. It seeks to move away from ...

Here at the Strategist, we like to think of ourselves as crazy (in the good way) about the stuff we buy, but as much as we’d like to, we can’t try everything. Which is why we have People’s Choice, in ...

Smart locks have turned the door into a network endpoint. Here''s how access control bridges physical and digital security - ...

To open a door fitted with the latest U.S. government-certified lock from high-end Swiss lock manufacturer Kaba, an employee must both enter a code up to eight digits long, then swipe a unique ...

Compared with standard locks, keyless locks are more convenient and secure. There are no physical keys to lose or would be thieves to copy. Nor is there an open keyway to pick from the outside. These ...

The main principle of this circuit is that the door lock opens only when the buttons in series are pressed at a time. We can use it to lock the doors and for other security purposes. This article ...

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