Database Users

Automatic screen brightness using camera or Light meter

it is possible ?
I'm using the KAISER, when in a building i set the brightness to low becuase it has a very bright screen and it's just a waste of battery
But when i go outside i can't see a thing, need to set it to high again
And then i just forget to set it to low again
is it possible to make it be automatic ?
(bright outside - high brightness, dark outside - low brightness)
Thanks !
p.s.
does the KAISER have a light sensor like the Universal's keyboard light sensor ?
if so, is it possible to use that ?

ah man i hear you. when my sister got her blackberry pearl, and i saw it automatically change brightness, i was jealous. aha. unfortunately, the sensor is hardware thing.
i'm not sure about the kaiser but i know the hermes has a keyboard light sensor, but it's on the keyboard, and only says whether to turn on the keyboard backlight or not. not too useful, i'd think.

Hermes and Kaiser have front cameras...

but camera is a no-no for battery

Even once a minute, or on power-on?
Well, maybe yes.

I nice Solution would be a Button you press it, and the Brightness gets configurated automaticly: perfect for battery because you do this only on need!
And there could be a standart brightness reseted after having standby on
I dont know how to use the Camera in VB.Net someone knows?

I was thinking more in the direction of the front camera and the timer ....but bettery above all .... if it is possible it would be awsome !
the buton pressing idea is (forgive me) pointless ... if i wanted to press a button i might as well press the on screen button i already have ! (spb mobile shell)
thanks for the idea though !
it's great to see so many people taking interest, hope it will stick !

SPB software is my solution. You can map your jog dialer for brightness. I use that for volume, so I use touch screen to slide my brightness.
http://www.spbsoftwarehouse.com/products/pocketplus/?en
look at the screenshot or demo. Map the brightness as botton4 is a option because brightness is a program link for you to set what ever button as you wish.

blah, i have an at&t 8525, so i forgot about the front facing camera. my current solution is to set the backlight to reasonable indoor setting, and i have VJLumos mapped to my Button5 press&hold. so whenever i go outside, I run VJLumos, and when I get back inside, I run VJLumos again (which turns it off) and it automatically goes back to the previous backlight setting.

Camera Flash Lite as A flashlite (Without the Camera)

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.
Click to expand...
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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..!

[Q] Anyone able to locate just where the light sensor is?

This may be a total noob question, but I was just curious to know the exact location of the light sensor because I cant seem to figure out where it is located.

EricSS619 said:
This may be a total noob question, but I was just curious to know the exact location of the light sensor because I cant seem to figure out where it is located.
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That dot that looks like a front facing camera (FFC) - that is your sensor there that controls screen on/off on calls and the auto brightness.

riggsandroid said:
That dot that looks like a front facing camera (FFC) - that is your sensor there that controls screen on/off on calls and the auto brightness.
Click to expand...
Click to collapse
Are you sure, because when I ran sensor test that dot did change the proximity sensor values, but the light values wouldnt change even if I covered it completely.
The only way I was able to change the light value was to move the whole phone into a darker or brighter location, but not by finding a pinpoint sensor on the phone.

Edit 2: When I cover the proximity sensor dot (the obvious one) with my finger and shine a light at the phone, nothing happens, and when I remove my finger from the dot and shine a light right on it, the screen gets brighter. I suspect both sensors are in the same spot (the plastic dot you see probably transmits ambient light to the light sensor as well as housing the proximity sensor, in the way many computers use a little clear/frosted plastic piece to indicate the status of an LED that is buried in the chassis.
Try it with a flashlight and see if you get different results.

If you are interested in disabling the light sensor go into settings and manually set your brightness.
I have to say the proximity sensor works much better than on my Hero.
Sent from my HTC Evo Shift 4G

i noticed the proximity sensor responds much faster than the one on my Evo

The light sensor is just to the right of the proximity sensor under the speaker grill. Turn on auto-brightness and test it with your finger.
Sent from my PG06100

BrandoKC said:
If you are interested in disabling the light sensor go into settings and manually set your brightness.
I have to say the proximity sensor works much better than on my Hero.
Sent from my HTC Evo Shift 4G
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Click to collapse
thats because i dont believe there is a proximity sensor on the hero.

karnoff said:
thats because i dont believe there is a proximity sensor on the hero.
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Click to collapse
I guess that's why it would be working better!

[Q] Autobrightness OFF or ON?

Hi guys, i have an issue to fix..i leave the autobrightness on but often i get the display underbrightened, especially in the daylight..i don't know if is ok to disable the autobtightness because now the battery lasts for over 3 days!
thank you and sorry for my english

dreamon85 said:
Hi guys, i have an issue to fix..i leave the autobrightness on but often i get the display underbrightened, especially in the daylight..i don't know if is ok to disable the autobtightness because now the battery lasts for over 3 days!
thank you and sorry for my english
Click to expand...
Click to collapse
Autobrightness, when enabled, will take 2-4 seconds to adjust the brightness... so you feel its underbrightened...you can disable it and keep brightness maximum, then it will surely decrease the battery life

OP - also make sure you are not holding the phone by the ambient light sensor when the auto brightness is not bright enough for you.

As far as I know "Auto adjust screen power" will limit the maximum available brightness, so you might try to turn it off.

Do you know if the option to save energy for the screen actually saves energy?

kreoXDA said:
OP - also make sure you are not holding the phone by the ambient light sensor when the auto brightness is not bright enough for you.
Click to expand...
Click to collapse
where is it exactly?

dreamon85 said:
where is it exactly?
Click to expand...
Click to collapse
One of the sensors to the left from the ear piece. If you grab the phone with your fingers on top and bottom, like in landscape mode, you can easily cover the sensor. Also some thick cases can cast shadow in the area of the sensor and throw off the autobrightness.
But yes, also make sure you have power saving mode off.

ok thanks to you all, i'll try turning down power saving..i'll let you know!

I'm glad I came across this tread as I noticed this too on my phone and started thinking it was a bug. I definitely am not covering the sensor and even placed the phone in direct sun light. I'll try turning the power saving off and see how it affects battery life and the brightness.

kreoXDA said:
But yes, also make sure you have power saving mode off.
Click to expand...
Click to collapse
Power Saving Mode has nothing to do with brightness unless someone manually modify it.
Regards.
Sent from GT-I9100

I notice that if its the last of my battery the screen will stay dull

[Q] Proximity sensor on all the time

Hello everyone ... Can someone help me please... I have my s5 for a few days ... And now I saw that my proximity sensor Is always on, I can see the red light even if my phone is locked... And I'm worried that is using my battery I got 5 or 6 h display max with 1 day of usage

Proximity sensor doesn't utilize a red light. Maybe you have a malfunctioning notification light?
Notification light is on the left. Proximity and light sensors are on the right.

mediumsteak said:
Proximity sensor doesn't utilize a red light. Maybe you have a malfunctioning notification light?
Notification light is on the left. Proximity and light sensors are on the right.
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It is on the right side... I barrely see it... But it s there and I know when is not on..... And trust me I'm not a NOOB
U can see it just in very low light.... At night )

Yup! Have noticed that with other phones too. It will be a very faint glow that you can see in the dark. I've seen it on at times too but it hasn't affected function so I never gave it a second thought

terrorblade23 said:
And now I saw that my proximity sensor Is always on, I can see the red light even if my phone is locked... And I'm worried that is using my battery I got 5 or 6 h display max with 1 day of usage
Click to expand...
Click to collapse
This is not a concern. The proximity sensor is an infra red sensor and emits a faint amount of visible red light. All of the S5's do that, it's normal and it is no barrier to great battery life.
If you did a forum search you would find existing threads where this has been asked and answered before. The glow probably represents the average bias current as the sensor periodically polls it's environment every x ms. In any event it's normal and expected behaviour.
.

fffft said:
This is not a concern. The proximity sensor is an infra red sensor and emits a faint amount of visible red light. All of the S5's do that, it's normal and it is no barrier to great battery life.
If you did a forum search you would find existing threads where this has been asked and answered before. The glow probably represents the average bias current as the sensor periodically polls it's environment every x ms. In any event it's normal and expected behaviour.
.
Click to expand...
Click to collapse
Thank you man... I was just worried because after I restart, it doesn't remain on and it s ok for some time (I think) ... And I can't see that infrared light... But after some time it stay on always )

After a fresh reboot, there may not be any apps using the proximity sensor. But a lot of apps do make use of it, so as soon as you use an app that does, the sensor will start monitoring and there will be that glow.
I don't think that the sensor uses much battery in most apps as mine is usually on. Even my screensaver makes use of the sensor and I still get great battery life.
.

fffft said:
After a fresh reboot, there may not be any apps using the proximity sensor. But a lot of apps do make use of it, so as soon as you use an app that does, the sensor will start monitoring and there will be that glow.
I don't think that the sensor uses much battery in most apps as mine is usually on. Even my screensaver makes use of the sensor and I still get great battery life.
.
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Click to collapse
please can you tell me name of these apps who are using proximity sensor becoz in my case i haven't installed any app that will use it

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amolmk said:
please can you tell me name of these apps who are using proximity sensor becoz in my case i haven't installed any app that will use it
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finally i solved it.... it was Smart remote software and that software using air gesture.... i disabled "use air gestures" option from setting in smart remote app and problem solved :good:
i hope this information helpful for everyone....