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1You can also store constant data in program memory, rather then SRAM, if you have SRAM space issues and free program memory. See here or hereConnor Wolf– Connor Wolf2014-02-15 02:09:59 +00:00Commented Feb 15, 2014 at 2:09
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1Another great alternative to EEPROM is an SD card. It does take up a few IO ports but if you do need a large chunk of space for, say map data or similar, it can be easy to swap out and edit with a custom program on a PC.Anonymous Penguin– Anonymous Penguin2014-02-17 14:05:37 +00:00Commented Feb 17, 2014 at 14:05
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3People should not be encouraged to use SPI SRAMs or RAM expansions, if they are running low on memory. That's just a waste of money. Choosing a bigger MCU would be cheaper. Beside, the performance could be very poor. One should first make a ballpark estimation: if the estimated RAM usage is too close to the limit, then you're choosing the wrong board/microcontroller/development platform. Sure, good usage (storing strings in flash) and optimization (avoiding using some libraries) can be true game changers. However at this point I see no benefits of using the Arduino Software platform.next-hack– next-hack2017-09-02 17:36:16 +00:00Commented Sep 2, 2017 at 17:36
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