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[Andrea] just sent us this great student hack he made for his room. He’s constructed an Arduino keypad door lock — without using any proper fastening hardware! The entire build is made out of scrap ...

There are tons of smart locks on the market right now, but none seem to cater to apartment-dwellers or those who don’t want to rip out their existing deadbolt just to add a smart lock to their smart ...

This is a simple password based door locking system circuit designed using 8051 microcontroller. It provides control to the actuating the load. It is a simple embedded system with input from the ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Jon Chase Jon Chase is an editor of smart-home coverage. For Wirecutter, he ...

Locks come in a variety of types and designs to meet a wide range of security needs. While many locks use a simple key-and-tumbler design, some locks use technology that is significantly more advanced ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Tim Heffernan Tim Heffernan is a writer who covers air and water quality and ...