idea for Neo 2nd generation: Accelerometer
ajturner at highearthorbit.com
Wed Jan 24 05:34:06 CET 2007
On 1/23/07, kkr <kkr22.mpt56 at bluewin.ch> wrote:
> I think the idea is good!
> But why only one?
> With one 3-axis accelerometer, we detect a move in the space XYZ: We
> move our arm.
> If we use 3 3-axis accelerometer (one in each angle of a triangle), we
> can detect more movements: We can detect if the neo turn over himself
> (with no global XYZ move).
You don't need 3 accelerometers to do that - 1 is sufficient. Gravity
is down, so you can usually use that to detect orientation of the
device (landscape, upright, upside-down). It would also allow you to
measure rotations of the device about axes (spinning/shaking).
For an idea of how small & inexpensive accelerometers are, see this
COTS (Commercial Off The Shelf) one from a hobby company:
$10.95 - that's for a single unit, not in bulk. There's a reason it's
started showing up in devices.
Now, pair the accelerometer w/ GPS and you have GeoPointing. "What is
that building over *there*?" Sure people do that already
(http://geovector.com/), but not on O/S platforms. ;)
> For exemple, we can detect too, movements as:
> 1. a rotation of the hand
> 2. waves with the hand (not like "hello", but more as "approximately")
> Does anybody know more about price and precision of the accelerometers's
> chips on the market now?
> Le mercredi 24 janvier 2007 à 12:50 +1100, Tehn Yit Chin a écrit :
> > Not too sure how doable this is, but how about having a 3axis
> > accelerometer in the 2nd generation of the Neo? This will give us the
> > ability to link hand movements as command sets, sort of like mouse
> > gestures but in a 3d space.
> > The obvious usage is for 3d gestures command the phone, eg shake the
> > phone three times to answer when a calls comes in, or move the phone
> > in a cross motion to put it into "do not disturb mode".
> > cheers,
> > tyc
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ajturner at highearthorbit.com 42.4266N x 83.4931W
http://highearthorbit.com Northville, Michigan, USA
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