Unstable values with LSM303 - accelerometer

Discussion in 'Embedded Systems and Microcontrollers' started by davemart, Jun 28, 2014.

  1. davemart

    Thread Starter New Member

    Feb 25, 2014
    3
    0
    I'm not sure that I'm write in the right place. So if this topic does not match with the section, please move it.

    I'm trying to work with a accelerometer from ST, the LSM303DLHC.
    Now I can communicate with it and receive some data.

    The problem is it the data are very unstable for axes X and Y, especially with it stopped, without any kind of shake.

    Is it normal, with this conditions, the values changes between -200 and +200 (with scale of +-2g)?



    Grateful for your help
     
  2. davemart

    Thread Starter New Member

    Feb 25, 2014
    3
    0
    Anyone can tell me if this is a normal situation?
     
  3. THE_RB

    AAC Fanatic!

    Feb 11, 2008
    5,435
    1,305
    I've never used that device, but a quick google showed that it uses I2C data interface;

    [​IMG]

    I think the most likely cause of the problem is that your software is not working correctly to interface to the device.

    Accelerometers when left alone always produce a highly stable output, never a change from -200 to +200!
     
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