/**** * Formatted logging to the Serial console. * Compiled in by setting LOGDEBUG * * 2015-05-25 Bruce Lacey V1.0 * * Based upon Arduino Playground prior art and should be moved to * the MySensors library at some point as a common debug logging facility */ #ifndef MYSLog_h #define MYSLog_h #define LOGDEBUG 1 #if defined ( LOGDEBUG ) #define LOG(fmt, args... ) log( fmt, ## args ); #else #define log(fmt, args... ) #endif void log(const char *fmt, ... ) { char buff[128]; va_list args; va_start (args, fmt); vsnprintf(buff, sizeof(buff), fmt, args); va_end (args); buff[sizeof(buff)/sizeof(buff[0])-1]='\0'; Serial.print(buff); } void log(const __FlashStringHelper *fmt, ... ) { char buf[128]; // resulting string limited to 128 chars va_list args; va_start (args, fmt); #ifdef __AVR__ vsnprintf_P(buf, sizeof(buf), (const char *)fmt, args); // progmem for AVR #else vsnprintf(buf, sizeof(buf), (const char *)fmt, args); // for the rest of the world #endif va_end(args); Serial.print(buf); } #endif