The ATmega328 chip found on the Uno has the following amounts of memory:
Flash 32k bytes (of which .5k is used for the bootloader)
SRAM 2k bytes
EEPROM 1k byte
Should I know how much memory space each command and data types uses while I am coding so that I do not exceed the amount of memory? I tried to search the internet and the forums for this answer but I could not find it.Thanks for your help, Don
In the Arduino IDE, under File > Preferences, turn on "verbose" for compilation. After Verify/Compile is finished, a final message will inform how much RAM and Flash memory is currently being used by your program.
Memory consumed by C/C++ "commands" is highly variable and depends on the optimization level that you selected.
Hi,
Have you compiled a sketch in the IDE yet?
It will tell you both the amount of program space that your sketch takes (in bytes and in percentage) and the amount of variable memory your sketch uses (in bytes and in percentage).
If you take a look here, you will know how much space each variable type takes.
As for the program, wll. itakes what it takes.
Jacques
Don:
Should I know how much memory space each command and data types uses while I am coding so that I do not exceed the amount of memory?
The amount of memory used by each data type is straightforward
- boolean, byte, char -- one byte
- int -- two bytes
- long -- 4 bytes
However there is no simple relationship between a C/C++ statement and the amount of space it will take in flash memory because a single statement can require a large number of machine-language statements.
...R