I am trying to hook up VI-302-DP-RC-S to AY0438-I/P. There is 4 digits capable in the Chip Driver and 3.5 in the LCD. I am having difficulty in material provide for these parts. I am confused in the how to set up K and Com to the VI 302-DP-RC-S. The same schematics show this going to GPIO. The documentation on the driver is vague. I am expecting a resistor going to a ground on this design on the LCD.
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