The guy who did the original tutorial used only one screen and he used a vga adapter to his mac for the screen. I understand what you are saying but I'm a bit lost as to how the positive and minus connects to the barrel dc jack lug from the arduino. I now understand how the two screens positive and minus connects to the lug. Because you strip them and solder them to the positive on the lug and then the negatives to the ground lugs. Think I'll order some screen when I know what screens to get. Need to know which size yet
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