idea for Neo 2nd generation: Accelerometer

Chad at
Wed Jan 24 18:28:22 CET 2007

On 1/24/07, Ben Burdette <bburdette at> 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 possible.  But then again it
> doesn't have accelerometers either at this point.

The wiimote uses only the one accelerometer.  Once you factor in that
gravity is always down you can use it as a tilt sensor as well.  The
IR sensor was added for accurate screen pointing as very hard
movements exceed the limit of the accelerometer and it does not have
enough resolution anyway.

Also note the IR camera and accelerometer are $3/ea.  This is why
Nintendo was ok with using Bluetooth w/o special encryption measures -
it has a huge profit margin anyway!

- Chad

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