#define __MCU_ATmega328p__ \
    ((defined __AVR_ATmega328P__ || defined __AVR_ATmega328__ || \
        defined __AVR_ATmega1688PA__ || defined __AVR_ATmega168A__ || \
        defined __AVR_ATmega88PA__ || defined __AVR_ATmega88A__ || \
        defined __AVR_ATmega48PA__ || defined AVR_ATmega48A__))

#define __MCU_ATmega32U4__ \
    ((defined __AVR_ATmega32U4__ || defined __AVR_ATmega16U4))

#define __MCU_ATmega8A__ \
    (defined __AVR_ATmega8A__)

#define __MCU_ATtiny4313__ \
    ((defined __AVR_ATtiny4313__ || defined __AVR_ATtiny2313A__))

#define __MCU_ATtiny85__ \
    ((defined __AVR_ATtiny85__ || defined __AVR_ATtiny45__ || \
        defined __AVR_ATtiny25__))