[Arm-netbook] IC for analog and digital buttons (EOMA-68)

[Luke Kenneth Casson Leighton]

On Mon, Jul 28, 2014 at 9:13 AM, Miguel Garcia <gacuest at gmail.com> wrote:
> Peter Green is right. We need 6 ADCs.
>
> 2014-07-27 17:06 GMT+02:00 Luke Kenneth Casson Leighton <lkcl at lkcl.net>:
>>  but you should be able to do keyboard matrix scanning to cover 16
>> buttons, 4 input 4 output... unless you really really want all
>> possible button combinations, hmmm...
>>
>>  are there any keys which may not be pressed together, so you can do
>> matrix-scanning on those, at least?
>
> Matrix-scanning is not a good idea. We want all possible button combinations.

 thought so :)

 ok so you have an IC for the GPIO, and one for the ADC.  i'm happy to
help you with the PCB: would you like to try sending me a DXF file
with the outline of the PCB edge, maybe also where the buttons are
supposed to go? we can see if i can import it?

l.