>inputs. I have 3 wires connected between the 2. Ground and a send and
>recieve data with a resistor in line with each. It seems to work fine.

This works fine for short cable lengths, but still has the potential to
glitch now and then.  It's definitely NOT production-ready, but it will get
you through the debugging phase.  The logic levels don't span the full range
on the '1' bit (logic low), as they only go to 0V with this setup, while the
computer is looking for anything 0 to -5V.

--Andrew
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