is it possible to store big static const array to external storage on uno

Projects Programming
1

I have this example of using fonts here ILI9341_due/examples/arcs at master · marekburiak/ILI9341_due · GitHub

the example include 3 header files which just hold large static const array which is being called during the program execution

of course the sketch wouldn't compile on arduino uno because it is too large for its memory

how can I store those big chunk of data on external storage like sd card or eeprom and call them later or something similer!!

can i just store the array values outside and after that use them later

3

I have an example of storing a font in PROGMEM in this thread: Gammon Forum : Electronics : Microprocessors : Interfacing LED displays with the MAX7219 driver

4

@delta_G
try download and compile the sketch yourself after selecting uno board and see what message you will get!

Sketch uses 38,664 bytes (119%) of program storage space. Maximum is 32,256 bytes.

@Nick Gammon
very long thread, I will take a look and try to understand, still beginner
thanks

6

I think you are right because I have removed the headers and commented all the references to them and compiled

the result was :

Sketch uses 28,264 bytes (87%) of program storage space. Maximum is 32,256 bytes. :confused: