On Tue, Apr 28, 2009 at 10:15:47AM -0400, C. Scott Ananian wrote: > I wonder if one could easily support running an LED backwards as an > ambient light monitor in Gen 1.5 - it seems that automatically > powering off the backlight in bright sunlight would lead to a lot of > power savings for most young users.
I agree that an ambient light detector and automatic adjustment of backlight would save power. It would happen transparently, magically. But I don't think the LEDs are often specified in terms of their ambient light detection properties. Perhaps it would be better to use a photodiode, or light dependent resistor. Then there's the spectrum of light being received. Then there's reflection from the laptop display itself to consider. I recall we also once had a discussion on whether the camera could be used as an ambient light detector. -- James Cameron mailto:qu...@us.netrek.org http://quozl.netrek.org/ _______________________________________________ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel