Arduino memory - data collection

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Discussion in 'Embedded Systems and Microcontrollers' started by justtrying, Feb 28, 2012.

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  1. Feb 28, 2012 #1
    justtrying

    Thread Starter Active Member

    Mar 9, 2011
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    I am using Arduino Uno for my project. The initial steps involve collecting 10X250 samples of data - i.e. data will be quickly collected using analogRead and stored in a 2D array to make it available for further manipulation - making for a large (from Arduino's point of view) sample size. Just realized today limitations of Arduino's memory.

    After looking at their website and some books, I believe that an SD is the way to go in terms of storing this data. The data is not intended to be static, but should remain in memory until next data set is collected. I'd like to get my assumption checked.

    Tnxs
     
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  2. Feb 29, 2012 #2
    DickCappels

    Moderator

    Aug 21, 2008
    4,551
    1,337
    SD Data cards are flash -which means the can wear out, so take that into account.
    If you expect to have a lot of erase cycles, take that into account.

    You can buy serial static RAM pretty cheaply -as an example, consider the Microchip 23K640, organized as 8192x8 bits can be had for less than US$1 and can be repeatedly rewritten, with no erase cycle needed, either.
     
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  3. Feb 29, 2012 #3
    justtrying

    Thread Starter Active Member

    Mar 9, 2011
    330
    767
    Would storing it in Arduino flash work somehow? Of course there is still the issue of wearing the memory out... I also have not been able to determine how to do it.
     
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