[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 ...

How Does a Keypad Lock Work?. 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 ...

2) Display information to LCDs controlled by your Arduino. 3) Be programmed to act as an extensive combination lock 4) Offer commands, such as ENTER, LOAD, CLEAR, etc.

After testing six different models, we've found the best electronic keypad lock.

The experts at Consumer Reports walk you through the process of setting up a smart lock for a rental property. Internet-connected locks eliminate the hassle and awkwardness of key exchanges.