Reading coordinate values using Accelerometer API in Windows Phone 7

In this post we will see how to read different axis values using the Accelerometer API.

To work with the Accelerometer API, first you need to add reference of Microsoft.Devices.Sensors



Then the below namespace,

Now to capture X Axis, Y Axis and Z Axis value you need to follow the below steps

Step 1

Create a task object of Accelerometer chooser

Step 2

Call the callback method when the user will complete a task and Implement the completed event to capture user data and status when user complete as tasks.



Step 3

Call the start method to start the accelerometer,

Step 4

We can read the values of XAxis, YAxis and ZAxis as below along with the timestamp of capturing data as below in the completed event. We are changing the double values to string.



You can save this data for further use for when accelerometer value got changed.

Let us run the application in debug mode to see value got captured,

When you click on Capture Data button, control will go to Accelerometer reading changed event. Then each time you move the ball, the Accelerometer reading changed event will get called.



For your reference, the full code is below,
 
using System;
using System.Windows;
using Microsoft.Phone.Controls;
using Microsoft.Devices.Sensors;

namespace EncryptingandDecryptinginMango
{
    public partial class MainPage : PhoneApplicationPage
    {     
        public MainPage()
        {
            InitializeComponent();
        }      
       

        void accelerometerTaskObject_ReadingChanged(object sender, AccelerometerReadingEventArgs e)
        {           
            string xCordinate = e.X.ToString("0.00");
            string yCordinate = e.Y.ToString("0.00");           
            string zCordinate = e.Z.ToString("0.00");
            DateTimeOffset timeCaptured = e.Timestamp;
        }

        private void btnCaptureData_Click(object sender, RoutedEventArgs e)
        {

            var accelerometerTaskObject = new Accelerometer();
            accelerometerTaskObject.ReadingChanged +=
                new EventHandler<AccelerometerReadingEventArgs>
                    (accelerometerTaskObject_ReadingChanged);

            try
            {
                accelerometerTaskObject.Start();
            }
            catch
            {
                //Error in starting the Accelerometer
            }

        }
    }
}

In this way you can work with the Accelerometer API to capture different axis values. I hope this post was useful. Thanks for reading.

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