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Brian12/05/2023
These displays are very clear to read, with white on blue text. The 20 characters per row, 4 row format allows heaps of info to be displayed by your Arduino projects. Just remember that the backlight does NOT include a current-limiting resistor, and one must be included if running it from the Arduino 5V power. If you connect it to the 3V out on your Arduino board, no resistor is needed. An R220 resistor works fine for 5V operation of the backlight.
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