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Hurray snakub!!!!! The yellow LED should stay on. That means everything is functioning normally!!!!!! HIp HIP HUrray!
Ya, it's supposed to have a high resistance. I think it keeps the current draw way down that way on the inputs, and I guess with how tiny and low power stuff is these days, the chip doesn't need much current to know what the voltage is on an input. So, they just use what is needed, which I think is super super super super... super tiny current. I would like to see an equivalent circuit for a microcontroller input pin some day, because I honestly have no idea what's going on in there.
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