PlatformIO ESP32经验

• dependencies

https://docs.platformio.org/en/latest/manifests/library-json/fields/dependencies.html

johboh/nlohmann-json

https://registry.platformio.org/libraries/johboh/nlohmann-json/installation

1、Depend on it 安装库：通过platformio.ini文件添加
Open platformio.ini, a project configuration file located in the root of PlatformIO project.
Add the following line to the lib_deps option of [env:] section:
lib_deps = 
    ArduinoJson
    johboh/nlohmann-json@^3.11.3
Build a project, PlatformIO will automatically install dependencies.

2、Include it 引入库
#include <nlohmann/json.hpp>
using JSON = nlohmann::json;

3、Command Line Interface  安装库：通过命令行添加
Open PlatformIO Core CLI
Change directory (cd) to the PlatformIO project where platformio.ini is located.
Copy the following pio pkg install command and paste into the CLI shell, press Enter:
pio pkg install --library "johboh/nlohmann-json@^3.11.3"