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    DeviceMotionEvent

    This is an experimental technology
    Because this technology's specification has not stabilized, check the compatibility table for the proper prefixes to use in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the spec changes.

    Summary

    The DeviceMotionEvent provides web developers with information about the speed of changes for the device's position and orientation.

    Warning: Currently, Firefox and Chrome does not handle the coordinates the same way. Take care about this while using them.

    Properties

    DeviceMotionEvent.acceleration Read only
    An object giving the acceleration of the device on the three axis X, Y and Z. Acceleration is expressed in m/s2.
    DeviceMotionEvent.accelerationIncludingGravity Read only
    An object giving the acceleration of the device on the three axis X, Y and Z with the effect of gravity. Acceleration is expressed in m/s2.
    DeviceMotionEvent.rotationRate Read only
    An object giving the rate of change of the device's orientation on the three orientation axis alpha, beta and gamma. Rotation rate is express in degrees per seconds.
    DeviceMotionEvent.interval Read only
    A number representing the interval of time, in milliseconds, at which data is obtained from the device.

    Example

    window.addEventListener('devicemotion', function(event) {
      console.log(event.acceleration.x + ' m/s2');
    });

    Specifications

    Specification Status Comment
    Device Orientation Events Working Draft Initial specification.

    Browser compatibility

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
    Basic support (Yes) 6 (6) ? ? ?
    Feature Android Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
    Basic support (Yes) 6.0 (6) Not supported Not supported 4.2

    See also

    Document Tags and Contributors

    Last updated by: iain-logan,