Connect the female DB9 connector for the pedals to the board using the pins in the table in the .ino file. Do the same with the male DB9 for the shifter. NOTE: when wiring the male connector for the ...
The goal was to decode the frequency-shift-keyed (FSK) signal into an 8-bit parallel output, and maybe drive a seven-segment display as the characters came off the tape at a screaming 300 baud.