guruprasanna02 / steps

Lumia SensorCore SDK sample for Pedometer and Step Counter APIs.

Steps

Steps is a sample application demonstrating the usage of Step Counter API. In this sample application, history data is used to display a graph of user’s steps during current day, and up to 7 days in the past.

Starting with Windows 10, this sample supports the Windows.Devices.Sensors.Pedometer. It checks if the Pedometer is present before falling back to using the SensorCore Step Counter.

1. Instructions

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Learn about the Lumia SensorCore SDK from the Lumia Developer's Library. The example requires the Lumia SensorCore SDK's NuGet package but will retrieve it automatically (if missing) on first build.

To build the application you need to have Windows 10 and Windows 10 SDK installed.

Using the Windows 10 SDK:

1. Open the SLN file: File > Open Project, select the file Steps.sln
2. Select ARM
3. Select the target 'Device'.
4. Press F5 to build the project and run it on the device.

Alternatively you can also build the example for the emulator (x86) in which case the Steps will use simulated data. In order to use the emulator, you need to uncomment the code block in StepsEngine to use the emulator, and include Lumia.Sense.Testing.

Please refer to the official SDK sample documentation for Universal Windows Platform development. https://github.com/microsoft/windows-universal-samples/

2. Implementation

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Two important functions for Steps sample in the SensorCore SDK's StepCounter class are GetCurrentReadingAsync and GetStepCountHistoryAsync. These functions are used in the sample to show graph of today's walking and running steps and current amount of the steps.

GetCurrentReadingAsync returns cumulative number of steps from the last motion data reset. The sample shows the total number of steps for today so we need to get the cumulative step count reading at the beginning of the day and then subtract it from the current cumulative step count reading.

The number of steps at the beginning of the day is got by calling:

GetStepCountHistoryAsync(DateTime.Now.Date, DateTime.Now-DateTime.Now.Date)

The function call returns step count history array for today at five minute intervals. The array has cumulative step count readings at 00:00, 00:05, 00:10... To calculate step count reading for today we subtract the step count at 00:00 from the value of GetCurrentReadingAsync.

To draw the graph we use the same array that the above call to GetStepCountHistoryAsync returns.

3. Version history

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• Version 2.0.0.2: Minor revision to error handling
• Version 2.0.0.1: Minor revision to assets
• Version 2.0.0.0: Updated to Universal Windows Platform
• Version 1.1.0.3: Updated to use latest Lumia SensorCore SDK 1.1 Preview
• Version 1.1.0.2:
• Some bug fixes made in this release.
• Version 1.1:
• Step counter on live tile gets updated using triggers for background tasks.
• Besides today up to 7 days of step history made available.
• Update to use Lumia SensorCore SDK 1.0
• Version 1.0: The first release.

4. Downloads

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Project	Release	Download
Steps	v2.0.0.2	steps-2.0.0.2.zip
Steps	v1.1.0.3	steps-1.1.0.3.zip
Steps	v1.1.0.2	steps-1.1.0.2.zip
Steps	v1.1	steps-1.1.zip
Steps	v1.0	steps-1.0.zip

5. See also

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The projects listed below are exemplifying the usage of the SensorCore APIs

• Steps - https://github.com/Microsoft/steps
• Places - https://github.com/Microsoft/places
• Tracks - https://github.com/Microsoft/tracks
• Activities - https://github.com/Microsoft/activities
• Recorder - https://github.com/Microsoft/recorder