Reverse the rotation of one single axis of CMRotationMatrix...

Stop gyro updates...

How to find the car speed on iPhone?...

Gyroscope CMAttitude setting custom reference frame...

Accelerometer didAccelerate delegate method not getting called in iOS sdk 6.0...

What replaces the iOS 5 deprecated accelerometer:didAccelerate?...

Drifting yaw angle after moving fast...

MonoTouch - Accelerometer with MotionManager stop sending updates...

CoreMotion-DeviceMotion not available on iPad 3...

iPhone orientation -- how do I figure out which way is up?...

CMSampleBuffer from OpenGL for video output with AVAssestWritter...

Best design for assigning CoreLocation & CoreMotion updates through multithreading?...

pARK working on iPhone 3GS...

Why do Core Motion updates not work when called through another object in this code?...

Calculating Lean Angle with Core Motion...

CMAttitudeReferenceFrameXTrueNorthZVertical does not work...

Update rotational data from the gyroscope with respect to a predefined orientation?...

How to create a CMRotationMatrix on devices without gyroscope...

Get a reference CMAttitude (aTtitude, not aLtitude) from ground level in CoreMotion...

Gravity reading Vs User acceleration reading of the iphone accelerometer?...

iOS5 CMMotionManager startDeviceMotionUpdatesToQueue: fails on iPhone3GS...

Using quaternions in Augmented Reality sample code "pARk" from Apple...

Create a single button which can trigger two actions and changes it's title?...

Are CMAttitude and CATransform3D related by rotational matrices?...

How to get rotation around Y-axis relative to how the user holds the device?...

Why is this CMDeviceMotionHandler never called by CoreMotion?...

iPhone4 iOS5 is there a physics engine to convert CMDeviceMotion events into displacement?...

when using CMDeviceMotion, if the device is straight up (pitch = 90), it's really unstable. Anyw...

How to solve multiple CMMotionManager conflict in iOS?...

Wrong compass heading values with CoreMotion...