The user should not be able to plug in the wire harness backwards.
Boris Jul 11, 2018
But able to use standard 2.54mm connectors, or some converter to 2.54 pinhead should be present.
Guest Sep 7, 2018
Just take a white or silver marker and write the connector IDs on the TOP of the connectors. It serves both to determine which is which (0, 1, 2 and 3) ad helps a lot in orienting them... unless one is blind. Better, you could use small stickers. That last idea could easily be implemented by Saleae.