grnd4sat wrote: ↑
Sat Jan 19, 2019 5:39 pm
The point is that if I power, say, plug #1, I get those 8V on pins #5 and #13 of the cobbler.
The Cobbler board will connect all of the GND pins together, both of the 5V pins together and both 3.3V pins together.
Try checking the cable without the Cobbler connected.