In researching for my current T3.5 project, I came across a reference that indicated a 100K value for the typical GPIO pull-up/pull-down resistance. I happened to have a T3.2 handy so I set up a pin as an input with INPUT_PULLUP, and then measured the pin voltage with a 27K resistor to ground. With that setup I measured 1.679V at the output, which *I think* means the internal pull-up value is more like 27K than 100K.
Am I missing something here? Maybe the T3.2 and T3.5 values are different?
TIA,
Frank
Am I missing something here? Maybe the T3.2 and T3.5 values are different?
TIA,
Frank