There are 17 pins on the molex connector on the beeb - your mapping table only shows 16 being mapped to the arduino. It looks like you missed Pin 4 - keyboard enable from the table - this shunts everything else out of line by 1 including the 5v/vcc line
following this as I'm working on converting a beeb keyboard to usb for a MiSTer project
There are 17 pins on the molex connector on the beeb - your mapping table only shows 16 being mapped to the arduino. It looks like you missed Pin 4 - keyboard enable from the table - this shunts everything else out of line by 1 including the 5v/vcc line
following this as I'm working on converting a beeb keyboard to usb for a MiSTer project