I am interested in making my own SIO2PC. I came across the FTDI Friend from Adafruit for $14.75.
Would that board work? I see the signal logic level is 3.3V by default, but I think the Atari SIO port is 5V.
If the logic levels are okay, then I should just be able to use jumper wire to connect the headers directly to pins on the SIO port, right?