This installment of Elektor Books presents an Appendix excerpted from Dogan Ibrahim’s book Nucleo Boards Programming with the STM32CubeIDE published by Elektor. At the heart of all projects described in the book is the Nucleo-L476RG development board, which is widely available at low cost, and the free STM32CubeIDE software. They make a perfect combination for pretty advanced embedded applications. Here, we make the STM32 micro, the CubeIDE, and Free RTOS join forces in a learn-as-you-go project.