Re: MK14 programming interface - Arduino version
I can contribute these, which were originally optocoupler interface diagrams for the Pi powered version, now annotated with the details of the connections to the Arduino Uno and Arduino Mega256. The pin numbering on these diagrams is based on the details contained in the .ino sketch in the first post above.
The first diagram is the one to use if you have either an original MK14 or one of the Czech replicas which seem to be perfect clones of the issue V MK14.
If you have one of the JM Precision replica PCBs you will need to build the interface as per the second diagram.
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