Hi Dennis,

I looked at the schematic and description and it looks to me like it will
work, however I would suggest the addition of 4 resistors (one in series
with each keyboard row). Otherwise if you are pressing one or more keys on
the keyboard while driving the LCD, you could be shorting PIC pins
together while they are set as output. And also if you are reading the LCD
bus you could also potentially be shorting the LCD outputs.

Cheerful regards,

Bob

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