[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 ...

Master the art of DIY home improvement by following our guide on how to install a keyless door lock on any exterior door.

Electronic and Arduino enthusiasts searching for an Arduino project to keep them busy this weekend may be interested in a new Arduino Mega fingerprint door lock. Using a little Arduino programming the ...

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 ...

Arduino enthusiasts may be interested in a new gesture controlled Arduino door lock which has been created by Adham Negm and uses an Arduino Uno together with a servo motor to slide the bolt back and ...

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 ...

The security flaws on this common hotel keycard lock are nothing short of face-palmingly stupid. Look closely at the picture above. This is a hotel room door swinging open. The device he holds in his ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Doug Mahoney Doug Mahoney is a writer covering home-improvement topics, ...