open random file from SD card

Forum 2005-2010 (read only) Software Syntax & Programs
2 
#include <stdio.h>

int thisTXT;
char FileName[[glow]7[/glow]];  [glow]// DO NOT make this buffer too small[/glow]

thisTXT = random(1, [glow]100[/glow]);  [glow]// DO NOT go over 100 without adjusting the size of the buffer[/glow]
sprintf( FileName, "%i.txt", thisTXT );
myFile = SD.open( FileName );