on this note, one thing i have wondered, is what is an expected amount of
current to be consumed by an LED backlight? I have some 16X2 displays, and
100ma looks good, but im afraid it may be too high. Any suggestions.

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On Fri, 21 May 1999, Ben Stragnell wrote:

> Thanks Eric,
>
> LCD or LED cathode? Are we talking about the backlight?
> Assuming we are, can I just tie 15 to GND in order to illuminate
> the thing, or should I use a series resistor?
> (Sorry - I have no experience with LCD displays, and no datasheet!)
>
> Cheers,
> Ben
>
> Eric Schlaepfer wrote:
> >
> > Hi Ben,
> >
> > Pin 15 is the LCD cathode. Its VCC is tied to the LCD driver chip's VCC.
> >
> > Later,
> >
> > Eric
> >
> > -----A sunspot caused you to write this message-----
> > From: Ben Stragnell <spare@CODEPUPPIES.COM>
> > To: PICLIST@MITVMA.MIT.EDU <PICLIST@MITVMA.MIT.EDU>
> > Date: Wednesday, May 19, 1999 1:51 PM
> > Subject: Optrex LCD module
> >
> > >Hi, sorry if this is a FAQ,
> > >
> > >I have a 16x2 Optrex LCD module, with LED backlight.
> > >I checked out Myke's page, which describes a 14-pin
> > >interface. However, these LCD panels have 15 pins.
> > >Am I to assume that pin 15 is Vcc for the backlight?
> > >Digikey part no. is 73-1034-ND, if that helps.
> > >
> > >Cheers,
> > >Ben
> > >
>