I came across this code on the forum for Max 7221 for scrolling text.
I believe that the 7221 and 7219 are very similair and I only currently have the 7219 so if this code works with the 7221 is it conceivable that it would also work with 7219. In the link to Youtube the uploader says that "It currently does not work with Arduino 1.0 only 0023." Obviously I am currently using Arduino 1.0 but I would like to try the code out. My question is can I have two different versions of the Arduino IDE installed on my computer at once and just use the version applicable to the code that I wish to run. The only other thought that I had was that I think that I read that previous versions of the IDE used .pde rather than .ino files If this is indead the case, and version 023 requires .pde files, do I just copy and paste the code into the Processing text editor which will and save it as .pde and then copy and paste that into the Arduino IDE.
Thanks for reading Pedro.