FastArduino currently supports a certain number of AVR MCU and Arduino boards based on these.

Since each MCU has its specificities, FastArduino defines distinct header files to ensure compile-time checking works fine for the current selected target.

MCU selection at compile-time is done by setting the following pre-processor macros in the command-line of the compiler:

VARIANT which can be one of:
- ARDUINO_UNO
- ARDUINO_NANO
- ARDUINO_LEONARDO
- BREADBOARD_ATMEGA328P
- BREADBOARD_ATMEGAXX4
- BREADBOARD_ATTINYX4
- BREADBOARD_ATTINYX5
- ARDUINO_MEGA
F_CPU

In addition, the following option shall be set at compile time:

-mmcu=<MCU> where <MCU> is the code of the target MCU as understood by the AVR build toolchain:
- atmega328
- atmega32u4
- atmega164
- atmega324
- atmega644
- atmega1284
- attiny84
- attiny85
- atmega2560

When using FastArduino makefile, then you first need to create your project under netbeans, generate a proper configuration for it, and pass it to make. This is described in further details in ArduinoDevSetup.

Note that you should never include directly a specific board header file (e.g. #include <fastarduno/boards/uno.h>) in your own source code, this will not compile properly. Instead, you should simply #include <fastarduino/boards/board.h> which will include the proper header file for the board defined by VARIANT.

Capabilities of each supported target

For each of the following supported targets, you can find the documentation of its specific header file:

Then all standard FastArduino API works on each target and shares this common documentation.

Supporting other targets

FastArduino may be added support for other AVR-based targets that share features similar to other AVR MCU: digital IO, PWM, analog inputs, timers, watchdog...

Adding support to a new target MCU or a new specific board embedding a supported MCU is rather easy thanks to FastArduino approach to board configuration, based on "traits".

This is further described later (TODO).