Add or update board definitions -- arduino mega at least #89
Description
Add new board definitions based on this gist
#if defined(__AVR_ATmega168__)
// Arduino Diecimila and older
LINE("__AVR_ATmega168__", __AVR_ATmega168__);
#endif
#if defined(__AVR_ATmega328P__)
// Arduino Duemilanove and Uno
LINE("__AVR_ATmega328P__", __AVR_ATmega328P__);
#endif
#if defined(__AVR_ATmega2560__)
// Arduino Mega 2560
LINE("__AVR_ATmega2560__", __AVR_ATmega2560__);
#endif
#if defined(__AVR_ATmega1280__)
// Arduino Mega
LINE("__AVR_ATmega1280__", __AVR_ATmega1280__);
#endif
#if defined(__AVR_ATmega32U4__)
// Arduino Leonardo
LINE("__AVR_ATmega32U4__", __AVR_ATmega32U4__);
#endif
#if defined(__SAM3X8E__)
// Arduino Due
LINE("__SAM3X8E__", __SAM3X8E__);
#endif
// Determine board type
#if defined(__AVR_ATmega168__) || defined(__AVR_ATmega328P__)
Serial.println("Regular Arduino");
#elif defined(__AVR_ATmega2560__) || defined(__AVR_ATmega1280__)
Serial.println("Arduino Mega");
#elif defined(__AVR_ATmega32U4__)
Serial.println("Arduino Leonardo");
#elif defined(__SAM3X8E__)
Serial.println("Arduino Due");
#else
Serial.println("Unknown");
#endif