Flatbuffers has pretty good tutorials for how to use them. We recommend going through them for more information.
Welcome! This folder contains a "codelab" where you can go through the process of fleshing out a basic control-loop using the same infrastructure as we do for the control loops that normally run on our robots. Currently, this just consists of a single codelab; the instructions for this are in the comments of the basic.h file in this directory.