Purchased a used WW that arrived yesterday (thanks, @t4w!) Per the WW documentation:
Align the ribbon cable so the red stripe corresponds to the white indicator on the rear of the module’s circuit board.
When I connect the cable in this fashion, the module does not power up or power the grid. If I reverse the ribbon cable, it powers up and works as expected. I’m using a Pittsburgh Modular EP-96 case: https://pittsburghmodular.com/structure-1/
What am I missing here? Is this something unique to the +5v on the Pittsburgh power supply? Am I going to fry the WW if I continue using it like this? Thanks!