When connecting power to my Leonardo the program runs. But the serial display does not. It just displays a blinking block. I can make keyboard entries with no problem, but the display never changes. I have to hit the onboard reset button before the display will work properly. Any ideas?

programs runs but display does not

knut_ny May 20, 2014, 6:51pm 2

display supports 3V3 ? (or needs 5V)

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