While drunkerly taking photos in Snapchat and watching TV at my friend's, we discovered that my flash was setting off the volyne controls, whyyyyy
TV remotes emit IR light. TV and other electronics receive IR light. The flash pattern translates to the commands.
Perhaps the flash is also emitting IR light. Or more likely the laser auto focus is emitting IR light.
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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.
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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...
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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)
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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.
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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...
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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!!!
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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
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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.
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Wait for HD3 to solve the problem just for you
I use LG Optimus 7. How to street LED flash when I shoot with a camera because no means impossible that the turn on to record a clip
sorry, I use LG Optimus 7. How to turn on LED flash when I shoot with a camera because no means impossible that the turn on to record a clip
Click on the little gear on the buttom right side, and you see the video settings, assuming you are already on video mode. Then there is two circles on the right side. make sure to select the one with the light bulb. And now when you shoot videos, the flash will turn on.
PS: This is why WP7 needs a screenshot feature like iOS...
Found this on Engadget, and wanted to let you know, in case you haven't seen it. the HD2 is supa!
http://forum.xda-developers.com/showthread.php?t=1236027
http://www.engadget.com/2011/08/28/htc-hd2-keeps-spry-with-mango-rtm-and-custom-rom-looks-to-clear/
Okay, now I might start thinking about Dual-boot and forget about Android's Single-boot .
if you see the video on engadget, there is something "flickering" next to the orange charging light...WTF is that? seems like the proximity sensor or ambient light sensor is emitting a flickering light! WTF?
great development though, shows the HD2 and its devs still have a lot of oomph left, go go go!!!
have the solved the cloud problem? kinda sucks if you can't use a vast majority of the OS services that run in the cloud.
ASCIIker said:
if you see the video on engadget, there is something "flickering" next to the orange charging light...WTF is that? seems like the proximity sensor or ambient light sensor is emitting a flickering light! WTF?
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It's the infrared LED that the proximity sensor uses. Digital cameras can pick up on it but the naked eye cant. If your proximity setting is on, then the LED will constantly be sending out IR pulses to gauge your distance as you use it.
After messing with the IR blaster for a while on the G2, I've found that though it has a narrow beam, its control is accurate and works with every IR controlled device I have.
So, the other day when messing with some Led strip lights under the bar, I thought about somehow using the IR blaster for controlling the lights.
The lights are 5050SMD RGB strips, controlled by a 12V control box that intercepts a signal from a remote that can change the color and brightness.
Couple months ago when we installed the lights, I looked up wireless control for LEDs and only found a solution with android phne wired to usb-to arduino connection. However, I never tried it out.
So to anybody out there, is it possible to create a signal from the IR blaster in a third party app or with root? I've also been looking at the Phillips Hue LED bulb APK to see if anything can be borrowed for this application.
Any ideas?
Sent from my LG-D800 using XDA Premium 4 mobile app
Why not use quick remote? It can learn from another remote.
livebyknight said:
After messing with the IR blaster for a while on the G2, I've found that though it has a narrow beam, its control is accurate and works with every IR controlled device I have.
So, the other day when messing with some Led strip lights under the bar, I thought about somehow using the IR blaster for controlling the lights.
The lights are 5050SMD RGB strips, controlled by a 12V control box that intercepts a signal from a remote that can change the color and brightness.
Couple months ago when we installed the lights, I looked up wireless control for LEDs and only found a solution with android phne wired to usb-to arduino connection. However, I never tried it out.
So to anybody out there, is it possible to create a signal from the IR blaster in a third party app or with root? I've also been looking at the Phillips Hue LED bulb APK to see if anything can be borrowed for this application.
Any ideas?
Sent from my LG-D800 using XDA Premium 4 mobile app
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I know this thread is old but I have the exact same question.
I own a Galaxy Tab 3 8.0 with an IR port and the same setting with the LED strips.
Did you find a solution?
Edit: Samsung IR Remote Control from the PlayStore is able to change colors of my strips! But only very limited
büscher said:
I know this thread is old but I have the exact same question.
I own a Galaxy Tab 3 8.0 with an IR port and the same setting with the LED strips.
Did you find a solution?
Edit: Samsung IR Remote Control from the PlayStore is able to change colors of my strips! But only very limited
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nope, never found it. Thanks for the hint though! Maybe ill make it a project
Since our beloved S8 has an iris scanner, which works using both the front-facing camera and an infrared reader, is there any way to gather data from said infrared reader? Not sure how useful it could be, but reading remote controls, or making infrared-light selfies (depending on the resolution of the sensor) would be possible!
Has anyone tried getting data out from the sensor?
Like a thermal camera? I'd doubt the data would, in any way, be useful.
The infrared camera supports only a fixed focal point, any other will be useless
As far as I know all cameras have infrared filter build in to limit IR light from affecting visible light color balance. It still does pick up some IR light (you can check it by shining remote control into camera), but if you want IR photo you need camera that can bypass IR filter altogether (there are some). Also I don't think iris sensor ir emitter is strong enough to light up anything except for close proximity, even if you could bypass ir filter. And in case you wonder, yes IR photo can have some strange side effects in certain circumstances.
Yes, the camera actually takes an infrared video, you can try this by typing *#0*# on the dialer, and then selecting 'IRIS CAMERA TEST'. But only the security sub-system has access to it (Try and take a screenshot or screen recording and you'll see) so my guess is that it would be possible with root access (?)
I just want to turn the ir light on and off at will. How to do that?