[lcd4linux] Re: LCD4linux - Backlight control

[Michael R. <re...@eu...>]

Hi Zsolt,

> I'm thinking about switching off the backlight on the lcd.
> Is there any way to control one or more "unused" wire on parport from
> lcd4linux?
> This could drive a transistor which could switch on or off the
> backlight.
> I mean a HD44780 or t6963 display, they haven't baclight control yet.

Well, that should be no problem. There's already a HD44780-"Model' which 
supports backlight-control by software (but with a special command, and 
in 4 levels).

I don't know how a circuit could look like. Any ideas?

I could implement an additional Wire for "Backlight", which could be 
turned on and off. (we have 1 or two wires free)

Is this what you want?


bye, Michael

-- 
Michael Reinelt <re...@eu...>
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