µ[micro]electronics info

A weblog focused on interesting circuits, ideas, schematics and other information about microelectronics and microcontrollers.




Because I have not tested all electronic circuits mentioned on this pages, I cannot attest to their accuracy; therefore, I do not provide a warranty of any kind and cannot be held responsible in any manner.

My e-mail

My website

1-key USB keyboard

The idea for a 1-key keyboard comes from the need as an interaction designer to make “cheap, quick and dirty prototypes.” When creating a quick screen-based demo in e.g. Adobe Flash, a common way of quickly prototyping physical actions is to assign actions to certain key presses on a keyboard.

The goal is to create a keyboard hack that is smaller and cheaper and better reproducible than what one would get when hacking a keyboard circuit; a perfect solution for when you only want to use one switch in your prototype. (3 IO ports from the microprocessor are still unused, so it’s very easy to add 3 more switches.)

1-key keyboard

Powered by Drupal - Design by Artinet