2D or 3D chip?
Regards,
Le mercredi 24 janvier 2007 à 19:33 +0800, Sean Moss-Pultz a écrit :
On 1/24/07 11:41 AM, kkr [EMAIL PROTECTED] wrote:
Does anybody know more about price and precision of the accelerometers's
chips on the market now?
About US$3.
-Sean
On 1/31/07, kkr [EMAIL PROTECTED] wrote:
Another exemple of uses for an accelerometer: magnifier command set
(enable only in the context of a picture viewer or web browser
application).
Look at http://www.linuxtogo.org/gowiki/OpenMoko/Ideas/3DViewport
/Ole
It's not difficult to understand but I think it's not a very intuitive
idea. Ideally future OpenMoko devices would have multitouch which
would get us very intuitive zoom and movement along the map. Using an
accelerometer to control something is a good idea for the Wii where
you have the
On Thu, 25 Jan 2007 23:12, Jeff Andros wrote:
as I understand it, you can get more value out of the accellerometer
than that
in the simplest case, we know a gps can be off by a certain percent.
say you leave the phone still for a long time, you could average the
error and get more precise
We also need to take into account that accelerometers measure
acceleration. If you accelerating or decelerating it will be able to
tell you the magnitude of the force and you can time the duration to
find the distance traveled. However, suppose that you are moving at a
constant velocity, the
On Fri, 26 Jan 2007 9:12, Steven Milburn wrote:
yes, accelerometers measure acceleration. The first derivative of
acceleration is velocity. Granted errors in the accelerometer compound
when deriving velocity, but you've usually got GPS information to
calibrate against (As Jeff was saying).
On Fri, 2007-01-26 at 09:41 -0800, Tim Newsom wrote:
Ok Steve. I grant you that the first derivative of acceleration is
velocity... How do you propose to gain any velocity information when the
acceleration measured is zero as would be the case if you are at a
constant velocity? This is
On Friday 26 January 2007 18:41:50 Tim Newsom wrote:
yes, accelerometers measure acceleration. The first derivative of
acceleration is velocity.
Ok Steve. I grant you that the first derivative of acceleration is
velocity...
I don't think so. The first derivative of VELOCITY is
Tim Newsom wrote:
Ok Steve. I grant you that the first derivative of acceleration is
velocity... How do you propose to gain any velocity information when
the acceleration measured is zero as would be the case if you are at a
constant velocity? This is why I am saying you would need some
- Forwarded message --
From: Gabriel Ambuehl [EMAIL PROTECTED]
To: community@lists.openmoko.org
Date: Fri, 26 Jan 2007 19:13:49 +0100
Subject: Re: idea for Neo 2nd generation: Accelerometer
On Friday 26 January 2007 18:41:50 Tim Newsom wrote:
yes, accelerometers measure
Steven Milburn wrote:
Wow, I can't believe I got that backwards, thanks for the correction.
Kind of embarrassing considering I actually work on this stuff.
However, it doesn't invalidate that you don't need any more
information than the accelerometer and a starting point in order to
track
On Fri, 26 Jan 2007 11:18, Steven Milburn wrote:
Wow, I can't believe I got that backwards, thanks for the correction.
Kind of embarrassing considering I actually work on this stuff.
However, it doesn't invalidate that you don't need any more information
than the accelerometer and a
ha ha, I did mean to send it to the list... thanks!
On 1/26/07, Robert Michel [EMAIL PROTECTED] wrote:
Salve Jeff!
Was it your intention to answer me private and not to the list, too?
Don't get me to seriously, my English is not perfect,
so I'm not good in making jokes in English :))
On Thu, 2007-01-25 at 20:00 +0100, Ortwin Regel wrote:
The only situation where I can see the
accelerometer being really useful is where Apple is using it: For
changing the screen orientation of things according to how you hold
the phone.
An accelerometer is a nice to have for navigation too.
2007/1/25, [EMAIL PROTECTED] [EMAIL PROTECTED]:
Great stuff to impress the ladies! ;)
Please refrain from making any comments of a sexist or sexual orientation
nature.
Am I allowed to reveal my gender? I'm affraid it can be offensive, too...
--
Tomek Z.
On 1/25/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
Please refrain from making any comments of a sexist or sexual orientation
nature.
What exactly would be of a sexual orientation nature. He's not
saying that you have to impress ladies. You could impress men, little
children, cats, dogs,
On 1/24/07 11:41 AM, kkr [EMAIL PROTECTED] wrote:
Does anybody know more about price and precision of the accelerometers's
chips on the market now?
About US$3.
-Sean
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On Wednesday 24 January 2007 12:33, Sean Moss-Pultz wrote:
On 1/24/07 11:41 AM, kkr [EMAIL PROTECTED] wrote:
Does anybody know more about price and precision of the accelerometers's
chips on the market now?
About US$3.
Are they good enough to twice integrate the acceleration data (which
Hi!
On 1/24/07, kkr [EMAIL PROTECTED] wrote:
Le mardi 23 janvier 2007 à 22:15 -0400, Jose Ildefonso Camargo Tolosa a
écrit :
Hi!
Too much trouble.. the phone could get confused when you
walk/run/jump, or when you are in a car/bus.
Perhaps, can we use it as a command sets in a context
On 1/24/07, Gabriel Ambuehl [EMAIL PROTECTED] wrote:
On Wednesday 24 January 2007 12:33, Sean Moss-Pultz wrote:
On 1/24/07 11:41 AM, kkr [EMAIL PROTECTED] wrote:
Does anybody know more about price and precision of the accelerometers's
chips on the market now?
About US$3.
Are they good
Salve Jose!
Jose Ildefonso Camargo Tolosa schrieb am Mittwoch, den 24. Januar 2007 um
08:44h:
For exemple, we use it only if we are in a game or if the phone is
ringing...
If the command were shake to phone to answer, I could accidentally
answer the phone while I play with my kids!
Hi!
On 1/24/07, Robert Michel [EMAIL PROTECTED] wrote:
Salve Jose!
Jose Ildefonso Camargo Tolosa schrieb am Mittwoch, den 24. Januar 2007 um
08:44h:
For exemple, we use it only if we are in a game or if the phone is
ringing...
If the command were shake to phone to answer, I could
-207-3420 Mb
+61-2-9016-5642 (Sydney in-dial).
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of kkr
Sent: Tuesday, 23 January 2007 10:42 PM
To: community@lists.openmoko.org
Subject: Re: idea for Neo 2nd generation: Accelerometer
I think the idea is good
Gabriel Ambuehl wrote:
On Wednesday 24 January 2007 12:33, Sean Moss-Pultz wrote:
On 1/24/07 11:41 AM, kkr [EMAIL PROTECTED] wrote:
Does anybody know more about price and precision of the accelerometers's
chips on the market now?
About US$3.
Are they good enough to twice
For GeoPointing to work right, you would also need an electronic compass
module in the phone Right? Cause accelerometers don't know which
direction your pointing and gps isn't probably accurate enough to derive
what you pointed at when you moved it maybe 2 or 3 feet during the
gesture.
On Wednesday 24 January 2007 17:04, Tim Newsom wrote:
For GeoPointing to work right, you would also need an electronic compass
module in the phone
I think that's actually the only thing you really need for it to work. Not
sure how an accelerometer would help figuring out what direction
On 1/24/07, Gabriel Ambuehl [EMAIL PROTECTED] wrote:
On Wednesday 24 January 2007 17:04, Tim Newsom wrote:
For GeoPointing to work right, you would also need an electronic compass
module in the phone
I think that's actually the only thing you really need for it to work. Not
sure how an
On Wednesday 24 January 2007 17:55, Jose Ildefonso Camargo Tolosa wrote:
The accelerometer can allow you to know what directions the phone
went, and 3d orientation (rotations and stuff). The compass, would
just be for calibration, because you can trust them all them time
(just put a compass
On 1/24/07, Ben Burdette [EMAIL PROTECTED] wrote:
It would be ideal to have a 3 axis accelerometer and a 3 axis
tilt sensor like the wii. Apparently the wii controller uses an IR
sensor to keep itself oriented relative to the game console; since the
phone doesn't have IR this wouldn't be
Yeah.. I was using the accelerometer in my example to tell the program
what the phone orientation was so that you could limit distance without
having to touch the interface. If you had it set up to run from a free
external button, you could push it
And orient the phone and point and the phone
Hi!
Too much trouble.. the phone could get confused when you
walk/run/jump, or when you are in a car/bus.
But guess what: it could be an excellent excersize partner, by
measuring an approximation of your walk.
I could also suggest adding temperature/HR sensor (really good, from
sensirion,
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
On 1/23/07, kkr [EMAIL PROTECTED] 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
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