On Fri, Sep 18, 2009 at 8:35 PM, Al Johnson <[email protected]>wrote:
> On Friday 18 September 2009, RANJAN wrote: > > Hi, > > > > I was wondering why FR has two accelerometers.They could have one 3 axis > > accelerometer and a single angular rate gyro.How is a combination for 2 > > accelerometers more useful than one 3 axis accelerometer and a gyro? > > Or, better, use a 3-axis magnetometer instead of a gyro. > > At the time the FR was designed, gyros were significantly more expensive > and > less available than accelerometers, and magnetometers were large and even > more > expensive. Spaced accelerometers sounded like a good way of getting most of > the way there while still being affordable. In practice it doesn't work so > well. In the meantime gyro and magnetometer prices have tumbled. > > _______________________________________________ > devel mailing list > [email protected] > https://lists.openmoko.org/mailman/listinfo/devel > I think when FR was designed the Gyros costed around USD 17 .Is there a next version of Openmoko phone being designed? Sriranjan
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