MPGuino lcd help?
I just hooked up my Spiffie Mpguino tonight to the car.
I tested it yesterday using my computer's USB power supply and it worked fine.
Tonight, the screen powers up and I can tell it has text displayed, but something's messed up with the contrast - all the lcd "pixels" are dark, and the actual text pixels are lighter than the rest. It's like the lcd has too much power, and I can't make it low enough to see, like when you replace the batteries in a graphing calculator and you have to adjust it down, but I can't.
I tried flipping through the contrast settings with the center button, but it didn't make them readable.
Did I wire something backwards in order to get the screen to display negative?
I'm going to plug it back in to the computer and see if that way still works.
Any ideas?
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