Error message with sparkfun MP3 shield.

Projects Programming
1

Newbie here with some noob questions regarding project. So for the past several weeks I've been learning the arduino language for a costume project. Essentially what I want to do is have a button to control RGB lights, music, and servo function at once. So far I feel like I have mastered linear function, but when ever I try to incorporate the sparkfun MP3 shield into the mix, things just stop working at intended and I get this message:

F:\Arduino\libraries\SFEMP3Shield\SFEMP3Shield.cpp: In member function 'uint8_t SFEMP3Shield::vs_init()':

F:\Arduino\libraries\SFEMP3Shield\SFEMP3Shield.cpp:292:34: warning: deprecated conversion from string constant to 'char*' [-Wwrite-strings]

if(VSLoadUserCode("patches.053")) return 6;

I've gone though all the steps that I know of to try and resolve this issue, but my lack of knowledge is probably the issue here. Posted test code I'm using. Any assistance regarding this issue would be greatly appricated. Thanks!

test_non_address.ino (852 Bytes)

2

The warning is not an error. You could ignore it. What it is trying to tell you is that the string literal, whose type is const char *, is being passed to a function that (wrongly) expects a char *.

You can make the warning go away in two ways.

  1. Change the function declaration to explicitly state that the function expects a const char *.
  2. Add a cast to explicitly cast the const char * literal to a char *.
 if(VSLoadUserCode((char *)"patches.053")) return 6;