If you're at the beginner stage of embedded development, I highly recommend this course. As you progress through the project on your own, you'll be able to handle spi, ic2, uart communication and perform control through GPIO. Don't just follow the course exactly, but I recommend watching the course once and then trying it yourself. (There's no problem with just following the course, but doing it yourself seems to be much more helpful.) I also bought an stm32 board for the first time and didn't even know what HAL was, but by taking this course, I was able to build and strengthen the fundamentals of embedded systems. Thank you for providing such a great course.