Agree on the bad spelling, but not on the technique. Definitely the preferred way, and indeed the only way on many MCUs. And even if they are available you have to keep within the max total IO current of the device. External resistors are cheap and optimal.This is an astonishingly poor suggestion.In any case, I never trust the internal pull-ups/pull-downs in MCUs, they rarely sink/source the current you want. 0402 resisters are a tenth of a cent so add one.
Also
*resistors
100% agree with MikeDB here. I think it's "an astonishingly poor suggestion" to not use external pull-ups/downs. Reliance on the internals is going to lead to a massive world of hurt. You just need to sneeze next to the MCU to induce the wrong signal on to the lines.
Statistics: Posted by Lonewolff — Tue Sep 03, 2024 8:59 pm