He had only seen the numpad on Wikipedia and in the manual. So when he found some authentic stackpole numpads on a surplus sale, he grabbed them and converted them to be ADM-3A compatible.

[Debraj Deb], who previously built a whole house power monitor, designed this build around a PIC 18F4520 microcontroller. The desired voltage is set with an attached keypad, resulting in a digital ...

A new accessory from Mobee, which makes some inductive charging accessories for the Magic Mouse and Apple Keyboard, aims to use the Magic Trackpad as a Numpad replacement. The accessory is simply 3 ...