How to use ArduinoJson with CMake?
This page explains how to include the ArduinoJson library in your CMake project.
Method 1: using the FetchContent module
If you use CMake 3.14 or above, you can use the built-in FetchContent module.
cmake_minimum_required(VERSION 3.14)
project(example)
include(FetchContent)
FetchContent_Declare(ArduinoJson
GIT_REPOSITORY https://github.com/bblanchon/ArduinoJson.git
GIT_TAG v6.21.5
)
FetchContent_MakeAvailable(ArduinoJson)
add_executable(example example.cpp)
target_link_libraries(example ArduinoJson)
Method 2: using cget
Alternatively, you can use the cget package manager.
On the command line prompt, run:
cget install bblanchon/ArduinoJson
Then, in your CMakeLists.txt, add the following:
cmake_minimum_required(VERSION 3.0)
project(example)
include(cget/cget/cget.cmake)
find_package(ArduinoJson 6 REQUIRED)
add_executable(example example.cpp)
target_link_libraries(example ArduinoJson)
Method 3: using git submodule
Lastly, you can rely on Git submodules to fetch the ArduinoJson source.
On the command line prompt, run:
git submodule add https://github.com/bblanchon/ArduinoJson.git third-party/ArduinoJson
Then, in your CMakeLists.txt, add the following:
cmake_minimum_required(VERSION 3.0)
project(example)
add_subdirectory(third-party/ArduinoJson)
add_executable(example example.cpp)
target_link_libraries(example ArduinoJson)
