I am very new to Arduino so hopefully this is just an issue with my lack of knowledge. I am trying to pull variables off my SD card (example: Altitude, wind data, step size. Things that I don't want hardcoded into my program but can be easily changed via SD card) and then use them in other functions of my program such as in the loop and in ones of my own. I am using the adaFruit sd reader but I can only find ways to pull data off of it if it is within void setup(). This means anything I pull off of it is local and I cannot use it with other functions. Is there a way to change local variables to global? Or a different way to pull information off of my SD card without making it local?
Thank you and any help is appreciated!