examples/scanner/printf.h

   1 /*
   2  Copyright (C) 2011 J. Coliz <maniacbug@ymail.com>
   3
   4  This program is free software; you can redistribute it and/or
   5  modify it under the terms of the GNU General Public License
   6  version 2 as published by the Free Software Foundation.
   7  */
   8
   9 /**
  10  * @file printf.h
  11  *
  12  * Setup necessary to direct stdout to the Arduino Serial library, which
  13  * enables 'printf'
  14  */
  15
  16 #ifndef __PRINTF_H__
  17 #define __PRINTF_H__
  18
  19 int serial_putc( char c, FILE * )
  20 {
  21   Serial.write( c );
  22
  23   return c;
  24 }
  25
  26 void printf_begin(void)
  27 {
  28   fdevopen( &serial_putc, 0 );
  29 }
  30
  31 #endif // __PRINTF_H__