Accelerometer

The Accelerometer interface of the Sensor APIs provides on each reading the acceleration applied to the device along all three axes.

To use this sensor, the user must grant permission to the 'accelerometer', device sensor through the Permissions API.

If a feature policy blocks the use of a feature, it is because your code is inconsistent with the policies set on your server. This is not something that would ever be shown to a user. The Feature-Policy HTTP header article contains implementation instructions.

Accelerometer()

Creates a new Accelerometer object.

In addition to the properties listed below, Accelerometer inherits properties from its parent interfaces, Sensor and EventTarget.

Accelerometer.x Read only

Returns a double containing the acceleration of the device along the device's x axis.

Accelerometer.y Read only

Returns a double containing the acceleration of the device along the device's y axis.

Accelerometer.z Read only

Returns a double containing the acceleration of the device along the device's z axis.

Accelerometer doesn't have own methods. However, it inherits methods from its parent interfaces, Sensor and EventTarget.

Accelerometer doesn't have own events. However, it inherits events from its parent interface, Sensor.

Acceleration is typically read in the reading event callback. In the example below this occurs sixty times a second.

let acl = new Accelerometer({frequency: 60});
acl.addEventListener('reading', () => {
  console.log("Acceleration along the X-axis " + acl.x);
  console.log("Acceleration along the Y-axis " + acl.y);
  console.log("Acceleration along the Z-axis " + acl.z);
});

acl.start();