Drive the power to the LCD from a PIC pin rather than +5V, then you can
pull it low and back high under program control. The current drain will
be minimal, I'd imagine.

> ----------
> From:         Mike Watson[SMTP:mike@D-M-G.DEMON.CO.UK]
> Reply To:     pic microcontroller discussion list
> Sent:         Tuesday, January 27, 1998 4:58 AM
> To:   PICLIST@MITVMA.MIT.EDU
> Subject:      Re: LCDs and brown out
>
> In message  <38840@d-m-g.demon.co.uk> mike@d-m-g.demon.co.uk writes:
> > Hi,
> >
> > I am using a 16x1 lcd display with a 16C71. The C71 has a maxim
> > reset circuit (I think it is a 705, but can't remember exactly).
> >
> > If the power to the circuit is removed and then returned quickly,
> > the display stops working. I guess this is because the 705 resets
> > the PIC, but the supply doesn't go low enough to properly reset
> > the LCD.
> >
> > Is there a way round this?
> >
>
> I should have added that I am using the LCD in 4-bit mode and
> am not using the r/w pin.
>
>
> Cheers,
>
> Mike
>