> It seems like there are a lot of design rules that are not common knowledge. Even worse, there ard a lot of design rules that are shared as common knowledge,

> It seems like there are a lot of design rules that are not common knowledge. Even worse, there ard a lot of design rules that are shared as common knowledge, but that are wrong or detrimental to modern designs. Rules that applied when all you had were througholes, slow rise times and no emission tests to worry about. Modern MCUs for example might just run at 8 or 16MHz if so configured but can have rise times in nanoseconds, so emissions must be considered despite the "slow speed" of the clock. Another big one is having multiple capacitors one decade apart for decoupling, ie 1uF, 0.1uF and 10nF or something like that. With modern SMD capacitors you'll almost never want to do that. Instead use multiple large ones, ideally in the smallest package you can. > And, is there a place, maybe a slack or discord, that would review designs? I've had a good time over at MicroType Engineering's discord[1], got a separate room for design feedback. Also has a YouTube with some helpful videos[2]. [1]: https://discord.gg/CwWUxqdr https://discord.gg/CwWUxqdr [2]: https://www.youtube.com/@MicroTypeEngineering https://www.youtube.com/@MicroTypeEngineering