The official default code will not be burned in, hope to have a diagram

Why do I burn the official default code, but there are many libraries without arduino?A Chinese explorer, hoping to learn and stimulate curiosity.

Hello Jeff welcome on board:)

Yes there are many libraries without arduino. You can even use the libraries you developed. If you take a look at the Nwatch firmware that forked from Zak, it’s almost all custom libraries:) Please let us know if you develop a custom library:)