I'm pretty sure i have the PicVue module you describe (I got it for 3.95
at www.mpja.com) but i have not worked with it much. the data sheets i
have are scant, so i can only assume that it uses the standard interface.
(i know it uses 4-bit interface, and which pins go where, but not much
else). It needs a negative voltage for the contrast pin, and i know that
the display itself works (i can make it get black by adjusting the
contrast) but i have not fiddled much w/ the interface. My first attempt
w/ the interface has been unsuccesfull, but i will try some more later. If
any one has any info on this part, please tell me.

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A member of the PI-100 Club:
3.1415926535897932384626433832795028841971693993751
058209749445923078164062862089986280348253421170679

On Thu, 14 Jan 1999, Rich Kolbush wrote:

> Hi,
> I'd like to use a low cost (who doesnt, right?) LCD for various
> 16F84 projects that I have in mind, but I'm finding a wide range of
> prices, and very little online data. Min 2 lines of text is my only
> requirement.
> $3.95=16x2 PicView-PC066PGL, w/datasheets, +5Logic,-5LCD,+4LED
> $6.96=20x4 Hitachi-LM521xvct, +5logic, No Control CPU-drivers only, no
> datasheets
>
> I couldnt find any data online for either of these.  Obviously I'd like
> the $3.95 version.  So I guess my question is, are all LCD's basically the
> same to control, or are some harder than others to control/interface? Any
> recommendataions appreciated.
> Thanks,
> Rich
>