In particular, the wifi/gprs connection is going to suck a lot more power than the dimming, and weather sites are never accurate to the minute anyway (which *is* what you really need for this to be any better than just having a readily accessible brightness slider).
On Sat, Apr 12, 2008 at 6:52 AM, Ortwin Regel <[EMAIL PROTECTED]> wrote: > Exactly my thoughts: This sounds way too complicated to actually be > useful. I'd rather adjust my brightness manually. > > > > On 4/12/08, Nick Guenther <[EMAIL PROTECTED]> wrote: > > On Fri, Apr 11, 2008 at 8:50 PM, "Marco Trevisan (Treviño)" > > <[EMAIL PROTECTED]> wrote: > > > Since Freerunner won't have an hardware light sensor to set its LCD > > > brightness, I got some ideas about smartly changing the luminance of the > > > GTA02 screen to save its battery (still with an unknown life time :/). > > > Of course they aren't and never will be precise as an hardware sensor > is, > > > but it's the only thing we have: > > > > > > 1) Setting the brightness following the hour of the day: also if the > > phone > > > can't know if it's sunny or cloudy, neither if you're indoor or outdoor, > > > it's clear that just knowing the hour of the day, the date and your > > latitude > > > (to be set once via GPS) the phone can easily know when the sun will rise > > > and set, and so it will be possible increasing or reducing the LCD > > > brightness. > > > Also if you're indoor, I guess that when the sun is "gone" you won't > need > > > so much luminance... > > > > > > 2) Using personal profiles that follow your habits: you could define, > for > > > each hour of each week day the "presumed" luminance, using something like > > a > > > calendar. I mean, if on working-days I generally stay indoor every day > > from > > > 8:30 to 13:00 and from 15:00 to the 19:00 I figure that on these > intervals > > I > > > don't need all the LCD power, so I'll set in my "calendar" that on such > > > interval I'll be indoor... > > > I guess that many of you would follow a routine durning the week, why > > don't > > > educate your phone for it!? > > > > > > 3) Setting the luminance following the weather. Of course I've no light > > > sensors, neither a barometer :P, but if I've a working connection > > available > > > I could use the weather data downloaded every few minutes (60, for > > example) > > > from internet to change my screen brightness (of course merging these > > > informations with points 1 and 2) > > > > > > What do you think about them? > > > I do think that they are really simple to implement, and that also if > > they > > > won't guarantee a perferct result, they could be a "smart" workaround. > > > > > > -- > > > Treviño's World - Life and Linux > > > http://www.3v1n0.net/ > > > > > > > > > Or you could just... dim it after a few seconds and go blank after a > > minute like every other phone does. If we try to solve this by complex > > heuristics we're > > 1) going to get it wrong > > 2) going to end up wasting more battery in doing the computations than > > we save by them. > > > > > > -Nick > > > > > > _______________________________________________ > > Openmoko community mailing list > > community@lists.openmoko.org > > http://lists.openmoko.org/mailman/listinfo/community > > > > _______________________________________________ > Openmoko community mailing list > community@lists.openmoko.org > http://lists.openmoko.org/mailman/listinfo/community > _______________________________________________ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community