Hi Owen, Ok, Can you show me what kind of output you get running the example program? The output in your first post does not look like it using the most recent version. With the most recent version, I would expect it to give the same output in the post by @pam.
Otherwise, I know you said you checked the wires, but you should make sure that you have good continuity between the arduino and the logic converter by measuring continuity between the male header pins on the logic converter and the solder joints on the bottom of the arduino.
Did you solder those male pins to the logic converter, or are they just pushed through the holes?