What is the easiest and cheapest method to expand Arduino memory size?
As this is nothing to do with installing the IDE, I have moved your post here.
As to your question the only way you can expand the SRAM memory is to attach it to the Arduino Mega.
All other Arduino you get what you get with regards to SRAM, (memory to store variables) and Flash memory (for program storage). So if you want more you choose a Arduino that has what you want.
Remember these are embedded processors not computers.
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I am new to Arduino so things bit mixed up but yea got your point thank you.
Memory for what.
Program space is limited, but it could be fun to learn how to code with minimal space.
Leave things to print in flash with the F-macro is one example.
You could always add an SD card module for log files.
Leo..
In general, the Arduino-class microcontrollers do not have "expandable memory."
If you need more memory, you get a different type of Arduino board.
For SOME applications, you can do things like adding "external storage" (like a uSD card to hold images for web pages.)
Several Arduino supported boards have far more memory than UNO at no extra cost...
Have a look at the pre-fixed sizes of memory blocks (Fig-1) of ATmega328P MCU of Arduino UNO Board.
Figure-1:
Not enough information for a credible answer. What is it you need more memory for? Code? Configuration data? Dynamic data? A huge one-time lookup table?
Generally speaking, the easiest is buying a different Arduino, but telling us more context would help with guidance. If you've just run out of space (error, > 100% of some memory component during compile), perhaps throw your code into this thread and let the helpers tell you if there are significant savings to be had by changing your code.
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