12 Apr
2017
12 Apr
'17
9:49 a.m.
On Tue, Apr 11, 2017 at 01:02:39PM -0400, Christopher Browne wrote:
There is a chip, and a project, for that sort of thing.
The Atmel processors (recently discussed by Peter Hiscock) include some quite suitable to the task, notably the Atmega32U4
http://www.microchip.com/wwwproducts/en/ATmega32u4
There's a project for managing keyboard firmware for various keyboards using that chip, and it includes some "I built my own from scratch" options...
By the looks of it, not enough pins. Sure you could add some GPIO expander, but that would probably make it slower and more costly. -- Len Sorensen