The Wii nunchuck has 3 axis accelerometers. It talks thru an I2 interface, and the whole unit can be had for $18. The Wii MotionPlus has a two axis rate sensor (tuning fork) and is reported to be very accurate by gamers for another $18. Get two for 3+ axes.Seems to me that this mass produced system is a lot cheaper than a 6 axis OEM setup.Add a two axis compass from honeywell for a fast heading sensor, and you can do dead-reckoning without a GPS.
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Hi, motionplus is in fact 3-axis gyroscope (it has two-axis IDG600 + single-axis XV-3500 gyro chips inside). Here has been a lot of discussion about it some time ago.
However, getting just gyro chips from Sparkfun with comparable quality costs also $18, and you can interface them directly to your CPU analog port without messing with i2c. Triple axis accelerometer chip costs $12.
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http://www.invensense.com/products/itg_3200.html 3 axis pre-production
However, getting just gyro chips from Sparkfun with comparable quality costs also $18, and you can interface them directly to your CPU analog port without messing with i2c. Triple axis accelerometer chip costs $12.