A while ago I received a couple of I/O port expander modules that use the I 2 C protocol. Using that Chinese module, you can use only the SDA and SCL pins of your Arduino, or any microcontroller ...
tl;dr question: Is it possible to reseat or adjust a motherboard's back I/O shield if one of the mobo ports is partially covered by the little metal springy flaps? I built a custom loop PC a few years ...
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