Le 13901ième jour après Epoch, Tilman Baumann écrivait: > François TOURDE wrote: >> Le 13901ième jour après Epoch, >> Schmidt András écrivait: >> >>> Tilman Baumann wrote: >>>> Bluetooth would be nice. You would need no hardware hacks on the >>>> phone itself. >>>> Should be pretty easy to hack a bluetooth->serial converter (like >>>> BlueSMiRF from sparkfun) to the sensor. Maybe with a little >>>> microcontroller glue in between. >>>> Bluetooth is very simple to code and simple to handle. >>> I was thinking about two possible applications: >>> >>> 1. The map of a GPS map viewer application turns when you turn the >>> machine so it is always aligned with the environment (this feature >>> is included on some GPS tools.) >> >> Maybe the 3D accels can do that. And the GPS can be used as a bearing >> indicator, when you move. No magnetic device needed in this case. > > Gyroscopes is what you look for. ;)
Yes, but it's not (yet?) included in the phone :) ... But accels are. > Accelerameters don't see rotational movings. Except if this is 3D accels. If we omit the case of a rotation around the accels center (and we can because there is 2 accels), a rotation can be measured using this kind of devices. I imagine it's not so easy, but I think it's possible... with my poor knowledges in physics :) _______________________________________________ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community