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Update: The Confusion Grows
I hooked it up for the "Hello World" example. I needed a small jumper for the wire going to the Analog out contrast (the one that should go to a pot). I grabbed a diode because I had one laying on the table and the wire ends are the right size to fit into the arduino headers. Everything worked great.
Then I grabbed a piece of wire to replace the diode, just for a slightly better setup. The letters then went crazy again.
I have tried it many times in both setups, it will always work with the diode and never with the wire.
The diode is properly oriented. And once the display is working jumpering across the diode with wire does not make it go crazy. It just gets slightly brighter.
I guess my next step is to wireit up mpguino style with the diode on the contrast pin and see what happens.
Any other ideas?
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