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[Solved] Arduino - Detecting Free RAM / Free Memory
(@hans)
Famed Member Admin
Joined: 11 years ago
Posts: 2741
Topic starter
June 29, 2014 3:09 AM
While trying to debug a sketch, I had to test memory availability to see if I was dealing with memory leaks.
On GitHub I found this little procedure for that purpose:
int freeRam ()
{
extern int __heap_start, *__brkval;
int v;
return (int) &v - (__brkval == 0 ? (int) &__heap_start : (int) __brkval);
}
You can dump the output to your Serial monitor like so:
serial.print( freeRam() );
