On Thursday 15 March 2012 12:57:23 Dr. H. Nikolaus Schaller wrote: > During the "Openmoko Stammtisch Munich" yesterday, we > have once again discussed options to build a special GTA04 keyboard. > > And now I think we have found a way to really square the > circle. The square being functionality and the circle being > cost. > > The idea is to use: > * off-the shelf pushbutons (Panasonic has some nice and very > flat SMD buttons readily available at DigiKey) > * a Shapeways made custom case > * a not very sophisticated PCB with the buttons, a Bluetooth > HCI module [1], a small LiIon battery and a microcontroller scanning > the keyboard and supporting USB charging > > Now comes the key idea: having a shapeways printed case makes > it possible to think about a keyboard built into a replacement battery > cover. It makes it a little thicker than normal, but you can detach it > and use it as a keyboard.
I was with you up to the bluetooth + battery part. Why not use a slide out keyboard with a TCA8418 and wired i2c connection to the main board? The board should be cheaper and simpler, the plastics little different to a sliding bluetooth device, and there'd be no messing about remembering whether you'd charged the keyboard. _______________________________________________ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
