A kernel is the core of any embedded OS. It provides crucial task scheduling and multitasking services that ensure your application code's timing requirements can be met. You also regularly update and add new features to that code. Micrium OS is much more than a kernel. It provides a variety of modules that can be used to meet your project's requirements. Micrium OS is completely free to use on Silicon Labs EFM32 or EFR32 devices. Micrium OS can be added to your projects immediately without any licensing fees.