Database Users

front camera on htc hd 2

i see in fron of my htc hd2 in left side two small lens is that a fron camera.

No. It's not.

alibox87 said:
i see in fron of my htc hd2 in left side two small lens is that a fron camera.
Click to expand...
Click to collapse
One is a proximity sensor (turns off the screen when it's up against your face during a call) and the other is a light sensor (for the backlight's auto-dimming function)

its how the gov't is tracking you.
actually i'm glad as all the other phones get front face cameras i won't have one, no one needs to see my ugly mug.

Lol awesome first post!

it is an eyescanner? or a whole to feed the pink elephants?

I have some Risperidone for you...

Front cameras will be the cause for many divorces or split-ups...

secano said:
Front cameras will be the cause for many divorces or split-ups...
Click to expand...
Click to collapse
Actually with any luck front cameras will prevent many people from getting together in the first place

dont think its coming to this country but the rest of the world uses it, at one point last year we were headed in that direction but the minmo7 devices turned it down unless the companies are still waitin to unleash the devices but the network can handel the data

sirphunkee said:
One is a proximity sensor (turns off the screen when it's up against your face during a call) and the other is a light sensor (for the backlight's auto-dimming function)
Click to expand...
Click to collapse
If you want to get real technical about it, one of the holes is a light sensor that is sensitive to daylight for backlight brightness control and IR for proximity sensing, the other hole is an IR led that turns on during a phone call. When you hold the phone next to your face the IR led bounces off your skin and back into the 1st hole telling the HD2 that you have it near your face.
Try this, initiate a cell call on the HD2, then hold a video camera over those 2 holes. you'll see the IR LED lit up. It only lights during a cell call. Even better if you have a sony camcorder with nightshot mode activated, though just about every CCD/CMOS sensor is sensitive enough to IR even with the internal IR filter in place that you should be able to see it
Im going to take a guess that the IR led isn't just constantly lit, but likely pulse width modulated to some frequency the HD2 recognizes that way the light sensor can tell the difference between the IR bounce back and ambient light. I couldn't tell with my camera that it was PWM, but it could quite likely be at a frequency greater than 30hz, which you wouldn't be able to see on a standard video camera at 30fps. you'd need a high speed camera, or another IR sensitive photo diode attached to an oscilloscope.

d0ug said:
If you want to get real technical about it, one of the holes is a light sensor that is sensitive to daylight for backlight brightness control and IR for proximity sensing, the other hole is an IR led that turns on during a phone call. When you hold the phone next to your face the IR led bounces off your skin and back into the 1st hole telling the HD2 that you have it near your face.
Try this, initiate a cell call on the HD2, then hold a video camera over those 2 holes. you'll see the IR LED lit up. It only lights during a cell call. im going to take a guess that the IR led isnt just constantly lit, but likely pulse width modulated to some frequency the HD2 recognizes that way the light sensor can tell the difference between the IR bounce back and ambient light.
Click to expand...
Click to collapse
Awesome, thank you for the white paper I love that kind of stuff!

If it is quite dark, you can see the LED blink about once a second...

Heyy all,
Actually the guy was asking if that's a FRON camera. Yes it is!!!

chvvkumar said:
If it is quite dark, you can see the LED blink about once a second...
Click to expand...
Click to collapse
I think you're looking at the notification led on the far left of the earpiece speaker grille. I highly doubt you can see the IR LED with your naked eyes. Were talking about the two dots under the glass just to the left of that.
matyoka said:
Actually the guy was asking if that's a FRON camera. Yes it is!!!
Click to expand...
Click to collapse
That sensor is not a front camera. its a photodiode http://en.wikipedia.org/wiki/Photodiode i guess you could call it a 1 pixel camera lol

d0ug said:
I think you're looking at the notification led on the far left of the earpiece speaker grille. I highly doubt you can see the IR LED with your naked eyes. Were talking about the two dots under the glass just to the left of that.
That sensor is not a front camera. its a photodiode http://en.wikipedia.org/wiki/Photodiode i guess you could call it a 1 pixel camera lol
Click to expand...
Click to collapse
Believe me i can tell if it is an LED otherwise I wouldn't be doing my masters in electronics
and to answer your question, it definitely not the notification LED or the light bleeding from it into the adjacent space. when a call is in progress and it is very dark around, you can just make out the faint blinking.

alibox87 said:
i see in fron of my htc hd2 in left side two small lens is that a fron camera.
Click to expand...
Click to collapse
Wait for HD3 to solve the problem just for you

proximity sensor red light

hello
my sgs2 have a problem he brings a light by my camera the proximity sensor.
and he brings red light what is this is this a wetness warning or what?
my olde sgs2 hes in the water falls. and i have a new sgs2. only he gives to red light in the sensor and he was wet.
is that the problem or what?

Ehh.. What?
Sent from my GT-I9100 using XDA Premium App

My sensor gives red light the proximity sensor. Sorry for my english. Id this normal?
Sent from my GT-I9100 using XDA App

He is saying his proximity sensor is red. Mine is red too. I think its normal. I can only see it when its dark though
Sent from my GT-I9100 using XDA App

Yep, very weak red light is normal. That's because it rather bright near infrared light.

Okay i can see i call and sometime when my phone is in standby have anyone this problem?
And when i test the sensor with AndroSensor than can i see rhe redlight. Some people says on a forum that the sensor cans see of the phone wet is with water...
Sent from my GT-I9100 using XDA App

rvosde1993 said:
hello
my sgs2 have a problem he brings a light by my camera the proximity sensor.
and he brings red light what is this is this a wetness warning or what?
my olde sgs2 hes in the water falls. and i have a new sgs2. only he gives to red light in the sensor and he was wet.
is that the problem or what?
Click to expand...
Click to collapse
when you are making call or sensor is activated somehow it' became red.
thats normal. dont panic.

It has nothing to do with water.

Okay. I will thank our now i can good sleep have a nice night or day!
Sent from my GT-I9100 with (Litening Rom 5.0) using XDA App

My proximity sensor will lit up the red light whenever I open up TalkBox app, I don't understand why as that app doesn't even use proximity sensor, maybe a bug or coding error in the program.

xsaintzx said:
My proximity sensor will lit up the red light whenever I open up TalkBox app, I don't understand why as that app doesn't even use proximity sensor, maybe a bug or coding error in the program.
Click to expand...
Click to collapse
Most probably .. contact the maker ..

rvosde1993 said:
hello
my sgs2 have a problem he brings a light by my camera the proximity sensor.
and he brings red light what is this is this a wetness warning or what?
my olde sgs2 hes in the water falls. and i have a new sgs2. only he gives to red light in the sensor and he was wet.
is that the problem or what?
Click to expand...
Click to collapse
i guess its a wetness sensor.. as i just experienced this issue some time back...
i had just taken a bath n my cell starting ringing, i went ahead n received the call without drying myself. As soon as i ended the call my screen went off, there was this red light coming out of one of the sensors, and the phone wasn't even switching on. I had to remove the batteries and place them back after which it started like normal.

xsaintzx said:
My proximity sensor will lit up the red light whenever I open up TalkBox app, I don't understand why as that app doesn't even use proximity sensor, maybe a bug or coding error in the program.
Click to expand...
Click to collapse
Talkbox uses the proximity sensor to determine how you are listening to your messages. If you hold the phone up to your ear then it will play the message through the earpiece. If you hold it away from your face then it will use the speaker.

karakemal said:
when you are making call or sensor is activated somehow it' became red.
thats normal. dont panic.
Click to expand...
Click to collapse
thx bro. i almost freaked out wen it happened again. and then i noticed that it only turns red wen m making a call ^_^

I have a problem with my proximity sensor too...
whenever im playing games/smsing/browsing with the phone...pretty much anything...
the red light is up...the only time its off is when lock...i used lcd test...it works fine(except ppl's proximity is 'null'...mine was '0')...anyone had this type of problem?
thx...=)

xWishx said:
I have a problem with my proximity sensor too...
whenever im playing games/smsing/browsing with the phone...pretty much anything...
the red light is up...the only time its off is when lock...i used lcd test...it works fine(except ppl's proximity is 'null'...mine was '0')...anyone had this type of problem?
thx...=)
Click to expand...
Click to collapse
null = 0 -.-

then any idea why is my proximity sensor light always on?i don think its normal...=)

xWishx said:
then any idea why is my proximity sensor light always on?i don think its normal...=)
Click to expand...
Click to collapse
It may be a bug or something... Did you try updating your phone, or flashing a new stock/custom ROM to see if the problem remains ?

Proximity sensor which is located beside the front facing camera will always be activated whenever you're in a call. It's slightly red in colour, and more noticable in a dark room. To see the proximity sensor in action you can go to the phone dialer and key in *#0*# and it will bring up the LCD test. Select sensor and you can see the red light of the proximity sensor being lit up. Hover your finger or an object over the proximity sensor (need not to be covering the sensor) and the phone will vibrate and so will the background change to green.

SGS-II said:
Proximity sensor which is located beside the front facing camera will always be activated whenever you're in a call. It's slightly red in colour, and more noticable in a dark room. To see the proximity sensor in action you can go to the phone dialer and key in *#0*# and it will bring up the LCD test. Select sensor and you can see the red light of the proximity sensor being lit up. Hover your finger or an object over the proximity sensor (need not to be covering the sensor) and the phone will vibrate and so will the background change to green.
Click to expand...
Click to collapse
Lol at you... Did you even bother reading the first page of the thread ? Guess not, since you're just repeating what we already told the guy

[Q] Circle next to earpiece and proximity/light sensors

It may seem like a totally noob question but I've searched all over and I can't find anything. Even in the lg g2 user guide, there is a picture but not any piece of information. I would like to know what is this circle right to the proximity/light sensors and left to the earpiece. thank you.

sachilleas said:
It may seem like a totally noob question but I've searched all over and I can't find anything. Even in the lg g2 user guide, there is a picture but not any piece of information. I would like to know what is this circle right to the proximity/light sensors and left to the earpiece. thank you.
Click to expand...
Click to collapse
do you mean the front camera or the front led?

sachilleas said:
It may seem like a totally noob question but I've searched all over and I can't find anything. Even in the lg g2 user guide, there is a picture but not any piece of information. I would like to know what is this circle right to the proximity/light sensors and left to the earpiece. thank you.
Click to expand...
Click to collapse
Notification LED

Looking in, from left: front-cam, light-sensor, LED notification, earpiece.

Ι've disabled notification Led since 3 days ago when I bought the phone and I couldn't figure it out. I guess it should be there in the first place in the user guide page 36 in phone overview : http://support.bell.ca/_web/Guides/User-Guides/Mobile/LG/LG-EN/LG-G2-user-guide.pdf
Thank you guys and sorry for the silly question.

sachilleas said:
Ι've disabled notification Led since 3 days ago when I bought the phone and I couldn't figure it out. I guess it should be there in the first place in the user guide page 36 in phone overview : http://support.bell.ca/_web/Guides/User-Guides/Mobile/LG/LG-EN/LG-G2-user-guide.pdf
Thank you guys and sorry for the silly question.
Click to expand...
Click to collapse
yea just looked at the pdf and was interesting to notice it doesn't point out that it's the notification led, one could think the phone doesn't have one looking at this

But didn't you see RED when plugging to charge?

votinh said:
But didn't you see RED when plugging to charge?
Click to expand...
Click to collapse
well he had disabled the led so it would be very difficult to know while its disabled

Maybe I'm too old to remember but for some reason, I thought even disabling LED notification (disable the color blinking) but red LED always lit at least for a moment when we plug it in for charging.
Anyway, I have to check it again.

votinh said:
Maybe I'm too old to remember but for some reason, I thought even disabling LED notification (disable the color blinking) but red LED always lit at least for a moment when we plug it in for charging.
Anyway, I have to check it again.
Click to expand...
Click to collapse
nope not with the g2 if the led is disabled then it doesn't light up for nothing(I just checked to make sure I don't say something dumb)

Wait a second people just wait a second. looking from left to right this is what i have. Camera, proximity sensor, unknown little circle within the same oblong opening as the prox sensor, and finally the notification LED.
What is next to the sensor?
[EDIT]
Sorry,i guess it would be the light sensor right?

ingoljosh said:
Wait a second people just wait a second. looking from left to right this is what i have. Camera, proximity sensor, unknown little circle within the same oblong opening as the prox sensor, and finally the notification LED.
What is next to the sensor?
[EDIT]
Sorry,i guess it would be the light sensor right?
Click to expand...
Click to collapse
Yes it's light sensor
Sent from my LG-D800 running stock kk, rooted with philz using XDA app

XxZombiePikachu said:
nope not with the g2 if the led is disabled then it doesn't light up for nothing(I just checked to make sure I don't say something dumb)
Click to expand...
Click to collapse
You were right, if disabling LED notification, there would be no red LED when plugging for charge.
Geez, I'm getting old

[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.
Click to expand...
Click to collapse
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.
.
Click to expand...
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

[/COLOR]
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
Click to expand...
Click to collapse
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....

[Q] Using Heart rate monitor red LED as a notification light? Is it possible?

Hey guys ,
I was thinking about this today. Can the Heart Rate Monitor's Red LED be used as a notification light? And customize the way it flashes to tell you vaguely what the notification is about before you check your phone? I sometimes leave my phone upside down; Even the dedicated LED on the front isn't bright enough to see if there is any notification.
Anyways let me know,
Thanks

I want that too
I was wondering about the same thing
good to see other users on the same boat with me
I want it to be turned on in-call and as a notification LED
is that possible ? anyone ?

I thought a lot more people would be interested in this. Having notification LEDs on both sides of the phone and having the back LED really bright red.

Any update on this?

or at least a way to make the standard LED notification way brighter...my note 2 have a bigger and brighter LED than the Note 4, I hope someone can find a way to make this happen...

Same thing I asked and in hopes of an asnwer
http://forum.xda-developers.com/general/help/heart-rate-monitor-laser-notifications-t3004422

jsan133 said:
Hey guys ,
I was thinking about this today. Can the Heart Rate Monitor's Red LED be used as a notification light? And customize the way it flashes to tell you vaguely what the notification is about before you check your phone? I sometimes leave my phone upside down; Even the dedicated LED on the front isn't bright enough to see if there is any notification.
Anyways let me know,
Thanks
Click to expand...
Click to collapse
i know that Emotion kernel has a few settings to send more voltage to the notification led, and to make it pulse instead of blink.
and it's also easy to make a profile in tasker to make the camera flashlight flash or pulse when you get a call or whatsapp message or whatever you want
you'd have to be pretty deep asleep or almost blind to miss that then :laugh:
i don't think it's possible to use the heart rate sensor for notifications though, since it's a sensor and not a light
hope it helps a bit :good:

Psycho_666 said:
i know that Emotion kernel has a few settings to send more voltage to the notification led, and to make it pulse instead of blink.
and it's also easy to make a profile in tasker to make the camera flashlight flash or pulse when you get a call or whatsapp message or whatever you want
you'd have to be pretty deep asleep or almost blind to miss that then :laugh:
i don't think it's possible to use the heart rate sensor for notifications though, since it's a sensor and not a light
hope it helps a bit :good:
Click to expand...
Click to collapse
I did use the camera flash as a notification LED for calls. But I don't like it as it is too much like a flash (duh) For example my buddy was sitting in the train in NY and had his phone in his hand and when he got a call, the flash came on and there was a girl sitting in a short skirt across from him who thought he was taking upskirt pics, lol.
And having a red LED on the back is something different and a little better than a white bright flash.
I don't know much about phone coding, but would there be a way to trigger the sensor into thinking that it is taking a measurement, when you receive a notification?

jsan133 said:
I did use the camera flash as a notification LED for calls. But I don't like it as it is too much like a flash (duh) For example my buddy was sitting in the train in NY and had his phone in his hand and when he got a call, the flash came on and there was a girl sitting in a short skirt across from him who thought he was taking upskirt pics, lol.
And having a red LED on the back is something different and a little better than a white bright flash.
I don't know much about phone coding, but would there be a way to trigger the sensor into thinking that it is taking a measurement, when you receive a notification?
Click to expand...
Click to collapse
it's probably possible if you can find the hardware path for the sensor, then you could use it with a tasker profile or make it in a mod.
But i have no idea how to find that path, and IF it even works then

Psycho_666 said:
it's probably possible if you can find the hardware path for the sensor, then you could use it with a tasker profile or make it in a mod.
But i have no idea how to find that path, and IF it even works then
Click to expand...
Click to collapse
Well I know for a fact that CM does have support for the sensor, and its not a hardware coded sensor as it can be used through the S Health app on the PLAY Store. So if you really wanted to know where to start looking I would say start there.
You could decompile the S Health app and see what portions of the system it access's to use the sensor and then develop from there.

I think it's rather hard, not to say impossible if you're not working for Samsung

Up :3
In test menu *#0*# / sensor / heart sensor / the red light can flash without the finger..

any updates on this?

Wave3.3 said:
Up :3
In test menu *#0*# / sensor / heart sensor / the red light can flash without the finger..
Click to expand...
Click to collapse
No it doesnt flash without a finger.

sushant1thakran said:
No it doesnt flash without a finger.
Click to expand...
Click to collapse
YES, IT FLASH WITHOUT A FINGER
I RECORDED A VIDEO FOR YOU
https://www.youtube.com/watch?&v=f64tjIfz37Y

Wave3.3 said:
YES, IT FLASH WITHOUT A FINGER
I RECORDED A VIDEO FOR YOU
https://www.youtube.com/watch?&v=f64tjIfz37Y
Click to expand...
Click to collapse
Okay,
But that trick is not working with note 4.

sushant1thakran said:
No it doesnt flash without a finger.
Click to expand...
Click to collapse
sushant1thakran said:
Okay,
But that trick is not working with note 4.
Click to expand...
Click to collapse
You don't have EOL TEST?

Wave3.3 said:
You don't have EOL TEST?
Click to expand...
Click to collapse
Yes, its working
& sorry.

sushant1thakran said:
Yes, its working
& sorry.
Click to expand...
Click to collapse
No problem man :angel:
Now for example we can use an application like "Automate" to auto enter in menu test and click "EOL TEST " when it receive a notification.
But it is too complicated..
Can anyone create a mod or anything..?

Hi, Nothing new app or module xposed about red led notification?
Sent From My Samsung Galaxy S7 Edge Duos SM-G935FD