[Gta04-owner] qwerty keyboard (was: GTA04 Production Status)

Dr. H. Nikolaus Schaller hns at goldelico.com
Thu Nov 1 12:58:49 CET 2012

Am 01.11.2012 um 12:51 schrieb Radek Polak:

> On Thursday, November 01, 2012 11:55:34 AM George Refseth wrote:
>> Since for normal people only one side of the phone can be viewed at any
>> one time,
>> the backside should be used for typing and/or strokes and cursor/pointer
>> movement.
> I had this idea too :) I think this could be doable and quite unique solution.
>> Anyone interested in joining in on a prototype project?
> This could be in fact very easy to prototype. I have bluetooth keyboard. I can 
> glue it to the backcover of GTA04 and see how it works.

It is planned for the next PCB design (GTA04A5) to add a small 6 pin FFC
connector for such experiments. It will have an 1.8V I2C, 1.8V, Reset and
an Keyboard Interrupt line. This is optimized for a TCA8418 keyboard controller
but other use is possible.

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