NUCLEO-F401RE is a Cortex-M4 development board, which is for the high-performance STM32F4 series. It also has mbed function ST Morpho expansion headers are also provided to connect all peripheral peripherals of the microcontroller The development board is designed Based on STM32F401RE, and the development board also integrates the ST-LINK/V2-1 emulation downloader (but only provides the external SWD interface), saving you the trouble of purchasing an emulator or downloader Can be connected to various Shield expansion boards, allowing you to easily and quickly add special functions ST provides a wealth of sample programs, allowing you to get started with STM32F4 microcontrollers more quickly. Come and unleash your creativity