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  1. Thread Author  Thread Author    #1  
    Murph5150's Avatar

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    Default Barometer and accelerometer: How are they useful?

    Coming from a Rezound, I'm pretty sure these were features I didn't have. What benefits do having a gyroscope, accelerometer, proximity sensor, digital compass, and barometer offer the user? I understand it has to do with the phone orientation but am unclear in their benefits. Any explanation would be great! Thanks!
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    superbleester's Avatar

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    Proximity sensor is helpful during calls as it turns off the screen when your face come within a certain range. Accelerometer is for screen rotation. Gyroscope is just a more advanced accelerometer it had 4 axises. Barometer detects air pressure, and but I don't think it has a use yet.

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    Default Re: Barometer and accelerometer: How are they useful?

    The barometer is a way to check altitude and will give you a faster GPS signal.
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    Default Re: Barometer and accelerometer: How are they useful?

    also useful when using maps, it will show what direction you are facing as opposed to just dot... certain games utilize them as well
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    Default Re: Barometer and accelerometer: How are they useful?

    I love the barometer feature on my GN! Here's an app that I have been using that takes advantage of the sensor. It's called SyPressure, it's free (upgrade is $1.30). It's pretty accurate at predicting rain in the area (dropping pressure), and even has a widget alert system to warn you of changing conditions. Just install it, let it run a few hours to let it find a trend... Enjoy!

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  6. Thread Author  Thread Author    #6  
    Murph5150's Avatar

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    Default Re: Barometer and accelerometer: How are they useful?

    Great explanations. Thank you all for your feedback! Waterfowl- I downloaded that app. Pretty cool. I have to play around with it. Thanks for the link .
  7. #7  

    Default Re: Barometer and accelerometer: How are they useful?

    Gyroscope
    • Provides the orientation (or attitude) of the device, it's much more accurate and reliable than accelerometers for this purpose.


    Accelerometers
    • Provides the magnitude and direction in which the device is moving. As the name implies, it measures the acceleration along any given axis.
    • Can be used to determine orientation of the device if you use accelerometers along 3 or 4 axis, but is significantly less accurate and prone to errors.


    Compass
    • As the name implies, it provides you your heading. It is aligned assuming you're holding the device face up and the top of the device away from you.
    • Input from the Gyroscope and Accelerometers allow for more reliable compass readings should your device not be oriented flat and face up.


    Barometer
    • Provides barometric pressure to aid in determining your altitude. Knowing your altitude can speed up a GPS lock. I'm not entirely sold on the success of this yet, since barometric pressure is not a constant with altitude.
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  8. Thread Author  Thread Author    #8  
    Murph5150's Avatar

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    Quote Originally Posted by DenverRalphy View Post
    Gyroscope
    • Provides the orientation (or attitude) of the device, it's much more accurate and reliable than accelerometers for this purpose.


    Accelerometers
    • Provides the magnitude and direction in which the device is moving. As the name implies, it measures the acceleration along any given axis.
    • Can be used to determine orientation of the device if you use accelerometers along 3 or 4 axis, but is significantly less accurate and prone to errors.


    Compass
    • As the name implies, it provides you your heading. It is aligned assuming you're holding the device face up and the top of the device away from you.
    • Input from the Gyroscope and Accelerometers allow for more reliable compass readings should your device not be oriented flat and face up.


    Barometer
    • Provides barometric pressure to aid in determining your altitude. Knowing your altitude can speed up a GPS lock. I'm not entirely sold on the success of this yet, since barometric pressure is not a constant with altitude.
    Great explanations. Thank you very much!
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    Default Re: Barometer and accelerometer: How are they useful?

    We have a barometer? I had no idea. I just downloaded SyPressure to play with it. Thanks to everybody for the heads up.

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