This application report introduces KNX systems and describes the resources available for creating a KNX application on MSP microcontrollers (MCUs). An introduction to KNX is given to empower you with a basic understanding of the overall KNX system. You can find detailed information on the KNX specifications on the KNX association website (knx.org). This application report also provides a description of the software and hardware available for developing the KNX application with step-by-step examples that navigate the tools for project creation, application debugging, and system testing of MSP MCUs.