Implementation

The solution architecture defines three different software packages:

• Common libraries and components: We can reuse the third-party libraries and the components that we developed in the previous examples. After all, it is the whole point of modular software design.
• Plug application: The plug application will have the AppPlug class on top of the common libraries to satisfy the project requirements.
• Multisensor application: We will develop the AppSensorNode and AppUi classes in the multisensor application. The application will integrate all the classes as a whole as described in the requirements.

Let’s start with the common libraries.

Preparing common libraries

The requirements and the design reveal some of the third-party libraries that we are going to need to develop the project. They are:

• ESP RainMaker for cloud connectivity (https://github.com/espressif/esp-rainmaker)
• A modified version of the ESP-IDF...