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Old April 6th, 2011, 06:57 PM   #88 (permalink)
colnelb
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Both the iPhone and the EVO have Micro Electronic Mechanical Systems (MEMS) accelerometers. The software for a MEMS accelerometer has to be programmed to exclude very fast movements to exclude "noise" and to exclude very slow movements to exclude the effects of gravity in some cases. The types of vibrational MEMS gyros that are in the iPhones do not have the requirement of the software filters. Because of the software filters, the accuracy and responsiveness of an accelerometer is relatively limited when compared to a MEMS gyro. Having both an accelerometer and a gyro will provide the best level of movement and orientation detection. I would like to see an EVO type phone with a gyro in addition to an accelerometer. Since both may be prior art before the days of smart phones, I don't see any reason for HTC not to include a gyro in their next version of the EVO.
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