# API Documentation ## Introduction ARCS Software Development Kit (ARCS SDK) is a set of software enablement for LS26xx microcontrollers, including low level peripheral drivers, components, middleware, and integrated RTOS support. Besides of these components, ARCS SDK also provides related demos and examples, as well as documentation to help users evaluate products and build up their application efficiently. ## Licensing ARCS SDK is permissively licensed using the BSD 3-clause license.