If you starts from scratch, you must well know the STM32Cube ecosystem.
This is a set of tools -maybe one of the most powerful tools that ST provides free of charges to the world- and embedded software bricks to enable fast and easy development on the STM32 platform which simplifies and speeds up developers’ work.
This tool, accompanied by proper hardware, allows you to graphically select the STM32 that best fits your needs, to define the clock tree and the peripherals/sensor to be automatically enabled, to save the configuration and generate the code to be downloaded on your STM32.
Our journey will unfold precisely within the libraries of this ecosystem. Let's go!
--> check the tutorial videos here for building up your environment
--> for more information, please go to STM32 MCU community
