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Secret LED on the right side of the earpiece grill?

Discussion in 'Android Devices' started by tracerit, Aug 18, 2010.

  1. tracerit

    tracerit Android Enthusiast
    Thread Starter

    Check out this video at around 10 seconds, the LED there will start to blink:

    YouTube - HTC evo wimax light display

    Apparently this is from xda and someone there is making a wimax notification light indicator. I didn't know that LED existed...

    uminchu, NeoteriX, Bagua and 8 others like this.
  2. BenChase7

    BenChase7 Android Expert

    interesting... never seen that.
  3. Kelita

    Kelita Android Enthusiast

    I would love to have a Bluetooth notification LED blinking in blue like WM has. I tend to forget mine is on.
  4. Thefoodman52

    Thefoodman52 Android Expert

    I was about to reply that it's the front camera but.... hmm....
  5. R1_Rydah

    R1_Rydah Well-Known Member

    You have got to love those dudes on xda... They are going to make my android days just as enjoyable as my wm days were...
  6. gear.h34d.2012

    gear.h34d.2012 Well-Known Member

    Whoa...Someone please write that LED into Cyanogen/Fresh. Do want to utilize.
  7. novarider

    novarider Android Enthusiast

    Wonder what its actually for?
  8. Supposedly it was supposed to be a wimax indicator for hotspot mode. But it wont actually work with a stock phone. There is an app on xda that they found to light it up, and they are trying to write it into future builds. it would be nice to have the left one light up for texts, and the right one for emails.
  9. novox77

    novox77 Leeeroy Jennnkinnns!

    maybe if they dig even further, they'll find the actuator that transforms the phone into a fkin jet.
  10. jeremylobaugh

    jeremylobaugh Well-Known Member

    what you are seeing is the infrared transmitter for the proximity/light sensor. The human eye cant see it, but the sensor on that camera will.

    Or maybe not, i just noticed there is another sensor behind the glass ...<shrugs shoulders>
  11. novox77

    novox77 Leeeroy Jennnkinnns!

    No. Cameras and video cameras have an IR filter in front of the sensor chip to block near-light IR transmissions. This is why photographers with dSLRs no longer need IR screw-on filters in front of their lenses. --UPDATE-- I'm wrong. only high-end a/v equipment have good IR filters.

    Easy to test. Record the front of your remote control and see if you see any pulsing lights. You won't.

    The proximity sensor is in the black area under the normal left-side LED.
  12. AndroidMax

    AndroidMax Android Enthusiast

    "Easy to test. Record the front of your remote control and see if you see any pulsing lights. You won't."

    Can I jump in (without derailing this thread) and say that my camcorders can easily record the outputs of my remote controls. Both the front and rear cameras of my evo pick up my remotes.... Perhaps YOU should test this.
  13. novox77

    novox77 Leeeroy Jennnkinnns!

    I guess I stand corrected. Although both my SLR and my dedicated camcorder pick up nothing. I guess the evo's camera is cheap and they didn't bother with the IR shield. I did test :) just not with the evo.

    BLOWNCO Well-Known Member

    NeoteriX, v01rider and jeremylobaugh like this.
  15. jeremylobaugh

    jeremylobaugh Well-Known Member

    Newer dSLR's and high-end video cameras, YES. Everything else...no. Here is my EVO with an active call(the only time the proximity sensor is on) and you can see the purple glow from the light. I took pics with my Hero and my Kodak V1003(posted this one, it looked better). My Olympus E-500 requires a filter, my E-3 does not.


    So, I was definitely wrong on the location of the IR Tx LED...prob won't be the last time either :)
    novox77 likes this.
  16. jeremylobaugh

    jeremylobaugh Well-Known Member

    That clears up my thoughts that it was just an IR LED being seen by the camera sensor...I question everything I see on the forums, to many trollers. Thanx
  17. LS1

    LS1 Well-Known Member

    Just launched the app on my phone - the other LED is nice. I'd like to be able to see notifications on that LED, and charging only on the left (or vice versa)

    I hate that I can't see LED notifications while the phone is charging.

    BLOWNCO Well-Known Member

    me too that's why this app will be awesome.
  19. AHWagner

    AHWagner Android Enthusiast

    Same here!
  20. surfologist87

    surfologist87 Android Expert


    I also miss the colors on my Blackberry Tour. I could set any color for any notification.. Especially Blue for my Bluetooth.

    Thsi is a step in the right direction :)
  21. dan330

    dan330 Extreme Android User

    yes.. hate missing notifications when charging.
    move the charge led to this new LED... and leave the old notifications on the old alone.

    if bluetooth is on.. then flash the new one .. ever 2 sec or so.

    solid when charging. and blink off every 2 sec.. if charging and bluetooth is on.

    great app idea.. bet you will sell almost every evo owner on this for $1.
  22. dgrobe2112

    dgrobe2112 Android Enthusiast

    with froyo, it blinks now while charging.. you dont lose the notification..
  23. MyFishWagon

    MyFishWagon Android Enthusiast

    Count me in
  24. AHWagner

    AHWagner Android Enthusiast

    I guess you're rooted?
  25. backdown

    backdown Android Enthusiast

    You must be rooted, i do not have that option, to my knowledge at least.

HTC EVO 4G Forum

The HTC EVO 4G release date was June 2010. Features and Specs include a 4.3" inch screen, 8MP camera, 512GB RAM, Snapdragon S1 processor, and 1500mAh battery.

June 2010
Release Date

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