November 1, 2010
about 4 years ago
i have this. I connected it via SPI as from the forum example (http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1247533060). It works perfectly when it is running off the arduino 5V pin, however when I attempt to run it from the 3.3v pin the display shows garbled results.
I was under the assumption that it could run from 3.3v as per the datasheet. “The
display can be powered at anywhere between 2.6 to 5.5V"
I need to be able to run it from a pro-mini 3.3v and lithium battery to keep it small- it is for a wrist watch. Any reason that 3.3 would make it display gibberish?
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