I'm using the older version of this display. It runs good in 8 bit and 4 bit mode using my own bit bang code with a 5V supply. In I2C mode nothing happens using either a 2.8V or 3.2V supply. Question: If the factory default mode is hex 00 (low volts) and it was run by mistake in 5V mode would this wipe out the low voltage regulator but not affect 5V operation?
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