FindArduino-cmake

Simple FindArduino CMake module for building and using Arduino as an external library.

This allows using any IDE that supports CMake (eg. Qt Creator) to code, compile and upload Arduino-based applications.

As arduino is focused on embedded platforms, you'll probably also need and additional CMake toolchain file (the following examples uses Generic-avr.cmake).

Example

CMakeLists.txt

#=============================================================================#
#                             Initial variables                               #
#=============================================================================#
set(DEFAULT_AVR_MCU     atmega2560          CACHE STRING "")
set(AVRDUDE_PORT        "/dev/ttyACM0"      CACHE STRING "")
set(AVRDUDE_PROGRAMMER  wiring              CACHE STRING "")
set(ARDUINO_SDK_PATH    /usr/share/arduino  CACHE PATH   "")
set(ARDUINO_VARIANT     mega                CACHE STRING "")
set(ARDUINO_BOARD       AVR_MEGA2560        CACHE STRING "")

#=============================================================================#
#                              Cross-compile                                  #
#=============================================================================#
set(CMAKE_TOOLCHAIN_FILE "cmake/Generic-avr.cmake")
list(APPEND CMAKE_MODULE_PATH "cmake/modules") # Where FindArduino.cmake is
add_definitions(-DF_CPU=16000000L)

#=============================================================================#
#                                 Project                                     #
#=============================================================================#
cmake_minimum_required(VERSION 3.0)

project(example
  VERSION 0.0.1
  LANGUAGES C CXX
)

#=============================================================================#
#                                   Arduino                                   #
#=============================================================================#
find_package(Arduino REQUIRED)
add_arduino_library_directories("$ENV{HOME}/Arduino/libraries" Servo)

#=============================================================================#
#                                   AVR lib                                   #
#=============================================================================#
add_library(examplelib STATIC src/library.c)
target_link_libraries(examplelib arduino arduino_Wire arduino_Servo)

#=============================================================================#
#                                  AVR image                                  #
#=============================================================================#
add_executable(example src/main.c)
target_link_libraries(example examplelib arduino_EEPROM)
add_avr_firmware(example)

Linux Console:

user@host build_dir $ cmake <path_to>/src_dir
user@host build_dir $ make upload_example

Notes

• This code has not been thoroughly tested.
• Right now, only supports Arduino on AVR architecture.

TODO:

• Create a working out of the box example.
• Set the DEFAULT_AVR_MCU and AVRDUDE_PROGRAMMER variables based on the ARDUINO_BOARD.
• Set the F_CPU definition based on the ARDUINO_BOARD variable.
• Set the ARDUINO_VARIANT variable based on the ARDUINO_BOARD one.
• Set the ARDUINO_ARCH variable based on the ARDUINO_BOARD one.

See also

• A more complete Arduino CMake module: queezythegreat/arduino-cmake