CANopenNode support for Espressif ESP32. This is normally referenced as a submodule in a project.
As of the time of writing, ESP-IDF v5.2 is used. The choice of IDE is Visual Studio Code. It is recommended to install esp-idf-extension plugin for VSCODE. For plugin installation instruction, see here.
Example for this ESP32 CANopenNode port can be found in ESP32_Test