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I know about how simple electronics work and have done some microcontroller projects, but those were usually so simple from the electronic aspect that I just assembled them on breadboard.
I would now like to learn more about how to properly design a circuit board and manufacture it either myself or let chinese kids manufacture it. Problem is just that I have no idea what I could build that I would actually need on a circuit board, so I am thankful for all of your ideas. If you have any project in mind, just post it. I also like hard tasks wjch I don’t exactly know how to solve in the beginning so really just recommend anything.