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Is the input on all character LCDs range from zero to 3.3 ?
Posted: Sun Jun 27, 2021 2:39 am
by theresa.waters
Is the input on all character LCDs range from zero to 3.3 ?
Re: Is the input on all character LCDs range from zero to 3.3 ?
Posted: Sun Jun 27, 2021 2:56 am
by keeling.jefferey
No, most character LCDs range from zero (ground) to 3.3V or 5V. There are old lcds that have a negative voltage for a wider voltage sweep. This extra voltage range is necessary to adjust for colder temperatures.