I have a Nano with an "online" data logging shield. It works fine when I reset the date/time. But then when I try to use a sketch that displays the date/time on a small OLED it gives just junk --- 165, etc. -- even though I've reset the date/time and uploaded the new sketch without disconnecting the USB cable. The result is the same whether I power the OLED with 3.3 or 5V. Yes, I checked the battery on the data logging shield and it's OK.
Also, the problem doesn't occur when I use a 20x4 LCD instead of the IZOKEE 0.96" OLED.
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