The purpose of this document is to give an overview of the TI SimpleLink™ Bluetooth® low energy CC2640R2F wireless MCU software development kit to begin creating a Bluetooth low energy custom application. This document also introduces the Bluetooth low energy specification. Do not use this document as a substitute for the complete specification. For more details, see the Specification of the Bluetooth System or some introductory material at the TI Bluetooth low energy Wiki.