Not sure if you said which hardware you are using - if there is already a demo for that hardware I would suggest using that, but it would come from the AWS repo. Otherwise the demo discussed above for Visual Studio is a hardware agnostic way of getting familiar with the code. It is in this directory of the download available from FreeRTOS.org https://github.com/FreeRTOS/FreeRTOS/tree/main/FreeRTOS-Plus/Demo/AWS/Fleet_Provisioning_Windows_Simulator/Fleet_Provisioning_With_CSR_Demo.