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