On Sun, 2 May 2010 19:37:32 -0400, "Jason White" said:

> you would notice the difference on the LCD even without a pot on the
> contrast (V0) right ?

No. The useful range of Vlcd is very small and very close to ground.

If you don't have a pot, find a resistor to attach from the Vlcd pin to
ground. Somewhere in the range of 330 ohms to 2.2 K. For most generic
displays that should get you somewhere within the operating range(the
Vlcd will naturally pull up so you can take advantage of that).

Cheers,

Bob

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