#Defines - Builtin ?

Projects Programming
1

Hi,
As I hate re-inventing the wheel, is there a list of builtin defines / macros for the Arduino MCU?
I know from reading that there is DATE & TIME but do defines for ARDUINO_UNO_R3 and ARDUINO_MEGA_2560_R3 (for example), exist, as this would make life much easier for making headers etc.
Has anyone compiled a list somewhere?

Appreciate the help as always, kind regards,

jB 8)

2

They are sort of there, but in their processor form rather than arduino name, which allows compatibily between different variants with the same chip.
Uno:
AVR_ATmega328P

Mega1280 and Mega2560:
AVR_ATmega1280
AVR_ATmega2560

Leonardo:
AVR_ATmega32U4

#if defined(__AVR_ATmega328P__)

//This is only defined for the atmega328P, e.g. Uno, and many other variants. You could add:
// || defined(__AVR_ATmega168__) to support the older versions as well.

#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)

//This is only defined for the atmega1280 and atmega2560, e.g. any of the Arduino Mega boards

#elif defined(__AVR_ATmega32U4__)

//This code if only compiled for an Atmega32U4 chip, e.g. a Leonardo

#endif
3

Thanks, much appreciated.
Kind regards,

jB 8)