| WereKitten said: Just because I'm curious, do we have any info on how much the M+ gyros drift? |
There isn't much info on the IDG-600 gyroscope out there yet. The best I could find is this Ars Technica article:
http://arstechnica.com/gaming/news/2008/08/wii-motion-sensor.ars
"When you think of gyroscopes today, though, especially with regard to heading information, they're around $300,000 and are capable of accuracy of ten-thousandths of a degree per hour so that a 747 after an eleven hour flight can land where it's supposed to land," explained Virginia. "Game controllers, such as what Nintendo has selected, don't need that kind of accuracy. What they were looking for something in the area of one-tenth of a degree per second. [The IDG-600 gryo in the MotionPlus] measure up to 1500 degrees per second; it offers accuracy and full-range motion. We worked towards [a cost of] $1 per axis."
One-tenth of a degree per second would drift up to 6 degrees in a minute of play, or a full 90 degrees in 15 minutes. Invensense's PR guy seems to be talking about Nintendo's minimum spec with that sentence, though, so it may not describe the IDG-600's actual capabilities.
"The worst part about these reviews is they are [subjective]--and their scores often depend on how drunk you got the media at a Street Fighter event." — Mona Hamilton, Capcom Senior VP of Marketing
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