Is there a software for making the flashlite turn on without using the camERA ON.
It is really useful if you dont want the camera to drain the precious battery... especially if you need it for hours...
I dont remember it, but I think I've seen it before somewhere in the net...
cingular 8125
rev5
Well, when using the camera app, it's not the sensor itself, but the maxed out backlight and the flashlight LED that eat most of the battery. So turning on just the LED won't buy you too much battery life in my opinion. Besides, i don't know if using a wizard as a flashlight "for hours" is a good idea - that thing is a high power LED, and they tend to heat up during prolonged use. Since it doesn't have any heatsink or even a big PCB to help dissipate the heat, it wold probably get damaged after half an hour of using it at max brightness. It would probably last longer at lower brightness - like when the camera app is turned on (the camera app enables full brightness only for a second when taking a picture), but using it for long periods of time even in that mode isn't a very good idea.
I think you'll be better off buying one of those small keychain LED flashlights, of a bit bigger flashlight using a 1W power LED if you need something brighter. It will be much cheaper than replacing a burned down LED in the phone.
And for short term emergency use - starting the camera app isn't that much of a problem after all.
Using your flash as a flashlight is a surefire way to burn it out. It's a high output LED, and isn't made to be run constantly. You can definitely do this trick, Vijay555 has created a widget that lets you toggle it on and off, but even he warns you of the consequences.
http://www.vijay555.com/?Releases:VJCandela
But it's not possible to dim it with this app, the camera program dimms the LED until you actually make a picture.
BriteLite
Actually the flash led is bright but the backlight maxed out with a white screen puts out more light. It still runs down the battery quickly but you are not pushing anything the phone isn't designed to do. I created a mortscript that combines two apps I found on these forums. One maxes out the backlight and the other displays a solid white screen. You can pick other colors too. here is the link http://forum.xda-developers.com/show...4&postcount=24 I use it all the time when I'm under a desk plugging cables into a computer and need a light.
Cheers
mr_deimos said:
Well, when using the camera app, it's not the sensor itself, but the maxed out backlight and the flashlight LED that eat most of the battery. So turning on just the LED won't buy you too much battery life in my opinion. Besides, i don't know if using a wizard as a flashlight "for hours" is a good idea - that thing is a high power LED, and they tend to heat up during prolonged use. Since it doesn't have any heatsink or even a big PCB to help dissipate the heat, it wold probably get damaged after half an hour of using it at max brightness. It would probably last longer at lower brightness - like when the camera app is turned on (the camera app enables full brightness only for a second when taking a picture), but using it for long periods of time even in that mode isn't a very good idea.
I think you'll be better off buying one of those small keychain LED flashlights, of a bit bigger flashlight using a 1W power LED if you need something brighter. It will be much cheaper than replacing a burned down LED in the phone.
And for short term emergency use - starting the camera app isn't that much of a problem after all.
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THATS VERY TRUE BUT IM NOT GOING TO USE IT FOR A HALF HOUR!...
its just that i want to show of my phone to other people...
and probably use it at night or so
thxks for the link..!
Related
Hey guys,
do you think it's possible to wirte a program which automatically can change the backlight according to the actual daylight condition.
Maybe it is possible to start the program when you wake up your device. then the program turns on the built in (front) camera for about a second or maybe more. The camera "checks" out the light intensity. If its very bright the backlight condition is set to the max.
his is only a idea. I'm thinking of it because for example today it's a very sunny and i can almost read nothing on the display of my touch cruise!!
What do you think about it?
greetings
any idea?
Or does any software like this exist?
Maybe the guy who wrote this program below could be of assistance:
http://forum.xda-developers.com/showthread.php?t=379270
Well, it doesn't have to be so hard...
All we need is a small service that reads from a file the approximate sunrise-sunset time and alters the brightness accordingly. If anyone has the time, he can additionally take advantage of the current time zone and calculate those limits automatically all year long!
Destinator 7 does the exact same think by turning night colors on and off. It is actually better than a build in brightness sensor because it never fails!
Nevermind...did not read the question thououghly
Yeah good ideas,
but a time sceduled scenery has also disadvanteges. When its clowdy outside it causes unnecessary battery consumption.
MVBklight 1.4.2 is not working on my polaris!!
w04g005 said:
Yeah good ideas,
but a time sceduled scenery has also disadvanteges. When its clowdy outside it causes unnecessary battery consumption.
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I come from a rather sunny country (greece) so I really missed this!
Anyway, those PDAs have actually very low brightness screens. In a bright day you cant actually see anything. On the other hand, I have yet to see a rainy/cloudy day that requires a reduction to the maximum brightness level. Overall I think that a time scheduled solution should be the best solution for no sensor-equipped devices.
papajohn said:
I come from a rather sunny country (greece) so I really missed this!
Anyway, those PDAs have actually very low brightness screens. In a bright day you cant actually see anything. On the other hand, I have yet to see a rainy/cloudy day that requires a reduction to the maximum brightness level. Overall I think that a time scheduled solution should be the best solution for no sensor-equipped devices.
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I second that! Even though I'm not from Greece but it's never too bright during the day. Right now my solution is to map the camera button to backlight so I can change it quickly.
Changing the brightness according to the time of day would not be as helpful as changing it according to the ambient light level. If you walk inside a dimly lit building during the day, you don't need the backlight to be as bright as if you were outside. Also, even outside, a cloudy day can be considerably dimmer than a sunny day.
jfeldredge said:
Changing the brightness according to the time of day would not be as helpful as changing it according to the ambient light level. If you walk inside a dimly lit building during the day, you don't need the backlight to be as bright as if you were outside. Also, even outside, a cloudy day can be considerably dimmer than a sunny day.
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I totally agree, but given the fact that there is no ambient light sensor in our devices I dont think that we can do any better. Two scales, one for day and one for night and we are OK for most cases. Yes, as you point out this strategy fails but it is better than:
1. No brightness change at all
2. Manual changes.
papajohn said:
I totally agree, but given the fact that there is no ambient light sensor in our devices I dont think that we can do any better.
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Thats the crux. Some devices especially the newer ones have a camera on the front. I'm no photo-expert but i think every camera is a "ambient light sensor".
The camera also reacts on different light conditions. You can see this by turning on the fps function. But i agree that it would be a lot of work.
Maybe we have to wait till more people and programmers own htcs with such bad displays like the polaris.
Titan Photo Sensor
I found myself thinking about this auto-backlight topic on my way home tonight after a long trip using my 8600 as a GPS. The screen went from being a clearly-visible screen during the day portion of the trip to a flashlight in my eyes at night. While I knew I could adjust the backlighting manually, I didn't want to mess with it while driving. Also, living in Arizona, I can barely make out the screen when in daylight unless the screen is on maximum brightness, but max brightness is horrible on battery life, so I would rather not set it to that by default.
Anyway, the Titan has a photo sensor on the keyboard which is used to determine dim lighting conditions and automatically illuminate the keyboard. I'm not sure if the exact lighting value being detected by the photo sensor can be read, but if it can be, then it should be relatively easy to write an application that would automatically adjust the backlight setting whenever the keyboard is slid open.
The application could both use location-based sunrise/sunset algorithms to set the default backlight value based on time of day, and also allow the setting to be overridden momentarily (perhaps only until the screen is turned off again) by opening the keyboard and sampling the ambient lighting conditions.
anyone saw such a program? I was thinking it'll be cool if the front camera can be used as an ambient light sensor to control the LCD screen's brightness
very very cool
idk, but i think it will reduce battery-live time by 100%
the power from using the camera would be a big battery drain unless it was set to a timer or assigned to a key.
cool idea though.
ducamie said:
the power from using the camera would be a big battery drain unless it was set to a timer or assigned to a key.
cool idea though.
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the camera doesn't really need to be on all the time. maybe once every 10-15 sec while the phone is on will be fine. i don't think anybody really use the front camera at all.
I wonder if somebody can give a solution of automatic backlight adjusting.
I think as a phone Athena need to be bright enough to use outdoor as well as in house. But it is a pity that the screen looks poor outdoor if the environment is already light.
My idea is to check the brightness via its built-in camera and adjust the backlight setting automatically. But it is again a pity that I am not able to develop on WM...
Can anybody give a solution? I would appreciate very much!!!
I have this feature on my Dell D620 notebook (dim sensor) and can tell, it's not significantly useful - at least I can see no difference, since the display itself is too dark for regular outdoor use.
Regarding your solution: I think the permanent camera-use would consume quite some power, wouldn't it? So the costs would be a faster leeching of the battery while the benefits are to automate a rather simple backlight-slider changing...
Any good? Camera+program vs. eye+hand?
will_990 said:
I have this feature on my Dell D620 notebook (dim sensor) and can tell, it's not significantly useful - at least I can see no difference, since the display itself is too dark for regular outdoor use.
Regarding your solution: I think the permanent camera-use would consume quite some power, wouldn't it? So the costs would be a faster leeching of the battery while the benefits are to automate a rather simple backlight-slider changing...
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Hello will_990,
I totally disagree with you. Form view points of benfit and battery.
I agree with you that the display itself is too dark. It is dark even if I manually turn it to max when I stay in sunlight. But won't software help a little bit? For me at least this will enable me to dail. Then the question is how to make a dail faster.
I do not see any clue it will drain larger power. If I move from a light place to a dark place, then the reduced backlight can then save some power. In addition, the camera does not have to stay on and keep acquiring brightness all the time. The use case could be:
1. User activate on screen.
2. Due to the event camera is on and light is acquired.
3. Software caculate brightness and suitable backlight.
4. The program set backlight and switch off the camera.
You have to check if a while of camera-on consumes more or lighting backlight high does. Assume that P1 is camera power and P2 is backlight power. t1 is calculation time and t3 is manual adjust delay. t2 is the duration you use it then. I expect
(P1+P2)*t1<(P2-P2')*t2.
Certainly, you can use your finger energy to adjust and thus save battery. Then P1=0 but P2*t3 is existing yet. Especially, in case you hold a device already dark, you have difficulty to find the slider so t3 becomes a consuming factor. I expect optimally even
(P1+P2)*t1<P2*t3.
I still looking for solutions...
Your opinion is well founded, however, in my opinion it is lacking at a certain point: I simply don't think that (P1+P2)*t1<P2*t3 could ever become true, unless you'd spend a really long time in changing the slider - or calculation time (and therefor CPU power consumption) would be set rather low...
I have to admit, though, that I don't know the variables' true values, therefor I can't verify or falsify your equations.
Anyway, it would certainly be interesting to test it, google is somewhat lacking on this topic.
Suppose a Case
The later equation deduces to
P1/P2 < t3/t1 - 1.
The battery is 2200mAh. I assume it lasts 3 hours with simple taping operation. So I suppose then 733mA is drawing normally without camera. Suppose the camera(the upper camera) boost the current double, addition 733mA, and calculation time is 10 seconds, and if you spend more than 20 seconds on handling the setting, you make it true.
Nevertheless I have to say, the number is just my estimation.
Even if the later one is false the feature is still attractive.
Looking for somebody to go on with this idea...
Could anybody to go on with this idea?
When Focus is charging, there is no LED light to indicate this.
Is this just an issue with my Focus, or is this happening to other people?
Yep, same issue here with no LED notifications of any kind.
is there even supposed to be a LED?I think I only see a proximity sensor and a light sensor
There is no LED, you just look at the upper right and see the power status as it has a 'power plug' logo inside the battery meter.
Reports are same with the Dell Venue Pro.
Also, people have mentioned that the iPhone 4 has no led either and people seem to make due with it.
I think the idea it to try to forget about the battery so much and just use your phone.
on wm6.5 I spent alot of time worrying about stuff like battery life, and what was using up my battery.. and what program was running when the amp usage was high.. and make sure I turn off push email when I am home..
but with windows 7.. I am trying to not worry about those things. I plug it in at night.. and no LED is better for sleep.. then I use the phone all day and never worry about if a program is eating up memory.. or other bugs that made me crazy with wm6.5
and the absolute best thing about the phone is that it is NOT an IPHONE!!!
ok so this phone is supposed to not have a led right? i was at a party last night and in a pretty dim lit room.. made a phone call and there was a faint red light that you could see just left of the upper spreaker grill... so if you go into a dimmly lit room and wanna make a call you can see a light there.. i dont know if this is just something from inside the phone making the color or if it is a led that will be accessible with a future update.. just wanted to share that.. loving this phone!!!
who knows how to turn off the light sensor? should that be always at maximum
Is it that thing that make my screen going dark sometimes and then bright again ?
I thought it was a bug in Android about the screen light management...
I'm very interested in turning it off me too.
I didn't look very hard, but from what I can see, you can't.
Is it that thing that make my screen going dark sometimes and then bright again ?
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Yes, it does just that hinders and tired eyes!
The above sentence makes absolutely no sense.
sorry,I mean ,that light sensor kills my eyes
Still it makes no sense at all!
N.
Ok guys, we all agree that his english is horrible, but it is understandable that he is saying that the changing / blinking of light, all the time, is not confortable for eyes.
I admit... for once, I understand his words...
huliqan said:
sorry,I mean ,that light sensor kills my eyes
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Turn the brightness down if it is uncomfortable? The reason why it changes automatically is to adjust to the amount of light in a given place. Otherwise, you'd have to constantly change the brightness yourself in order for the screen to be visible in all conditions.
Yes, I think we all know what is that function for, that's not the point.
The problem is that, in the same place with the same light, if, for example, your head make a shadow over or if you put your finger on the little hole up right the phone, the light of the screen will change as if you where in a place darker.
So according how you move the phone or hold it, your eyes will have to accomodate very often and it's very uncomfortable.
Maybe covering permanently that little hole will be the solution... but I would prefer just to turn it off.
Covering it permanently will also permanently place the backlight in the darkest mode. Personally I like this feature, once you know it's there it doesn't give a 'wth is happening'-feeling anymore and I believe it saves battery (no need for full brightness in dark places). Also for me it kinda gives that viewing-on-paper feeling, the device is quite okay in maintaining a balance between minimum visibility and overlighted eye-blasting power
Though yes an off-feature would be welcome sometimes ^_^
I would also Love to Disable this sensor.. More Brightness! MORE more more i tell ya! lol