If you want to add a keypad to your Arduino project, the options are pretty limited. There’s that red and blue 4×4 membrane we’ve all seen in password-protected door lock projects,… ...

Many laptops eschew the numeric keypad to free up space, ... So he redirected the PS/2 wires to an Arduino compatible Pro Micro and wrote some conversion code which you can find on his GitHub.

One of the complaints from my 2007 review of the new Apple keyboard that still stands is about Apple's lack of an extended wireless keyboard.. I can’t believe that Apple dropped the numeric ...