hydrolisk1792:
C:\Users\Jim\AppData\Local\Temp\arduino_modified_sketch_772442\HelloWorld.ino: In function 'void setup()':
C:\Users\Jim\AppData\Local\Temp\arduino_modified_sketch_772442\HelloWorld.ino:14:31: warning: deprecated conversion from string constant to 'char*' [-Wwrite-strings]
vfd.write("1234567890ABCDEF");
^
Sketch uses 1304 bytes (4%) of program storage space. Maximum is 30720 bytes.
Global variables use 96 bytes (4%) of dynamic memory, leaving 1952 bytes for local variables. Maximum is 2048 bytes.
Just ignore that. It doesn't mean anything except that the library author is kind of sloppy.