Ross,

most of the LCDs have a 14 (or 16) pin connector.
And if they are standard DOT-Matrix Text Displays (No Graphics)
they most likely hav a HD44780 Controller (or something
compatible like KS0070B or KS0076B)

They can all be run in 4 or 8 bit mode.


A 16x2 Module should be about $10 ($12 with Backlight)

So there is not much risk in just trying one of the modules.

Have a look at:
https://www.allelectronics.com/cgi-b...i?category=365