[Gta04-owner] [ANN] GTA04 Keyboard prototype
Dr. H. Nikolaus Schaller
hns at goldelico.com
Mon May 14 11:11:16 CEST 2012
Am 14.05.2012 um 11:01 schrieb Christoph Mair:
> On Mon, May 14, 2012 at 10:55 AM, Denis Shulyaka <shulyaka at gmail.com> wrote:
>> MPR121 uses I2C 3.3v interface which I guess we've got.
>
> This chip can also operate from 1.8V which is what we have on the
> GTA04 (and the I2C bus also uses these levels)
>
> Christoph
Christoph didn't mention that there is already a driver for the MPR121
http://gitorious.org/freerunner-navigation-board/mpr121/trees/master/kernel
and hardware for experimentation was available through the Freerunner Navigation
board:
http://www.mail-archive.com/community@lists.openmoko.org/msg62529.html
http://wiki.openmoko.org/wiki/Freerunner_Navigation_Board_v3#Bottom_side
Unfortunately it is no longer in production now (lack of demand).
If someone wants to develop such a touch keyboard, we
can help to get it produced and distributed for the masses.
Nikolaus
More information about the Gta04-owner
mailing list