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<h2>Sensor logger</h2>
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- <p>Logs changes in accelerometer readings and allows them to be uploaded for use in research.</p>
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+ <p>Logs changes in accelerometer and magnetic readings and allows them to be uploaded for use in research.</p>
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+ <p>When the "start" button is pressed, the application will log sensor data for approximately 50 seconds, and then automatically upload it along with the user-supplied activity description.</p>