On Fri, 30 Mar 2001 12:19:35 +0100, you wrote:

>Hi,
>Thanks for that...that cleared that bit up.
>
>I'm now not using any open drain I/O pins for the LCD.
>
>Just out of interest how much current does an LCD draw?=20
Almost none (nanoamps)- it's mostly capacitive.
>I know they are
>voltage driven devices, but will a PIC object to having the BP connected=
 to
>one of its pins without a transistor there? I don't want to blow the PIC=
 up
>because I was trying to draw too much current from it. Assume all the
>segments are lit up, whats the current on the BP likely to be?
Just check that the capacitance of the panel doesn't affect rise/fall
time significantly, as if assymetrical this could cause an effective
DC offset. I don't think this would be an issue unless you have a
REALLY big panel!

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