Re: [lcd4linux] backlight Control

[Thomas S. <th...@gm...>]

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Hi Stefan,

ne...@gm... schrieb:
| Hi can anyone tell me how to turn my backlight on with using lcd4linux??
|
| I have got Suse 9.0 and a HD447.. Display I get Screens on the Display
| but the Backlight is off??

This is a hardware issue and has nothing to do with the software.

The backlight is a simple lamp which can be connected over a little resistor
to +5V. On most HD44780 display modules this can be achieved by connecting Pin
16 to GROUND and PIN 15 to the slider of a 100 ohm potentiometer. The other
end (does not matter which of both Pins) of the resistor goes to +5V, the
third end stays unconnected.

After this you should have the backlight which can be changed in its intensity
by adjusting the slider of the potentiometer.

But:
Please make sure that you have a *real* HD44780 compatible module first. If
not you may destroy your module because I am refering to real HD44780
compatible Pinouts only.

If the above method dos not work then it might be possible that your backlight
lamp has become defective.

|
| Please help me Thx a lot
|
|
|
| Stefan
|

CU,
Thomas.
- --
thomas siedentopf - public key available.
This is Linux Country. On a clear silent night, you can hear Windows
reboot.
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