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Arduino

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    There is no Arduino specific language. Its just C++. Arduino just gives you a framework inside C++ to work with, like a predefined program structure (loop and setup function) and useful functions and libraries. But sure, you can use C code for Arduino - up to the point where the two languages are diverging from one another. It is not easy to spot the exact border on what of the new C features are supported, though with all older C code you should be good. Does this help? If not, can you explain more what confuses you? Commented Mar 15, 2022 at 18:27