Does anybody know how I could tap into the power inverter for the backlight to add a brightness control? The way I have the LCD set up is to use the remote (the buttons have been removed), but I would like an easy way to adjust the brightness.
I have a spot on the dash where I could put a rotary control for brightness, but another thing I was thinking of would be to integrate it into the car's dashboard illumination brightness control.
The way that works is that there is a wheel for brigtness by the steerint wheel and another button to brighten the dash when the headlights are turned on (the dash dims for night when the headlights are on, but there is an override switch). The trick is that when I adjust the brightness, the trip meter changes to "ILL 5, 4, 3..." to display whatever the brightness level is, so the system must be digital or something.
Tapping into this would be nice, but something custom would be fine too. Possibly a digital "step" system with one button, where pressing one button "scrolls" through dim->med->high->dim->med->high... and so on. Oh just thought of a light sensor in the car somewhere to automatically adjust the display based on the amount of sunlight in the car... maybe that would work somehow?
Thanks for your suggestions!
does your lcd's inverter have on board pwm dimming?
It kind of sucks when it's snowing. I turn the lights on and the LCD goes dim but it's still bright outside, so I turn the instrument lights off. Otherwise, it's fine.
Just wondering if you checked out all of the auto backlight threads going on here? There's numerous people working on all kinds of backlight mods, I'm unsure if they have achieved what you describe, but I know they're working on it.
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pwm dimming? What is that?Originally Posted by donde