This file describes the directories found at the root of the Amazon FreeRTOS distribution. lib: Contains the implementation of AWS and third party libraries. AWS libraries use abstracted interfaces to enable interchangeability and facilitate porting to new hardware. demos: Contains a set of pre-configured demo projects for various target platforms. The projects in the demos directory build the libraries from the lib directory. tests: Various module and integration tests that use the Unity framework. These tests also support the Amazon FreeRTOS Qualification Program (AFQP).