[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 ...

A keypad is one of the most commonly used input devices in microprocessor applications. In a standard keypad wired as an X-Y switch matrix, normally-open switches connect a row to a column when ...

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. We may make money from the links on our site. Learn more› By Doug Mahoney Doug Mahoney is a writer covering home-improvement topics, outdoor power ...

Posts from this topic will be added to your daily email digest and your homepage feed. Never get locked out again with a smart lock you can control from your phone, with your face, or with a ...

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 ...