I'm having a bit of difficulty understanding the following terms:
A "pull up resistor".
[But then I have a bit of a problem when folk say they have "added a load" to a circuit, with a resistor, when I would have said (in my logic) that a restriction had been added. But then like the optimist/pessimist dichotomy, it depends whether you are thinking of the resistor added across a short circuit, or an open circuit.]And "bit-banged serial" which I assume refers to a serial port on a Pic(axe) or similar processor.
Thanks for any clarification, jack