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Change LED Color?

Discussion in 'Android Devices' started by ODog2323, Sep 20, 2011.

  1. ODog2323

    ODog2323 Android Enthusiast
    Thread Starter

    Is there a way to change the color the LED flashes on notifications? I don't see anything in settings and haven't spotted an app that says it works on Samsung phones...

  2. rb312102

    rb312102 Android Enthusiast

    It has been confirmed that the LED only does red and blue.
  3. ODog2323

    ODog2323 Android Enthusiast
    Thread Starter

    Bah. No way to make the notification flashes brighter then huh? Its pretty tough for me to see as is.
  4. bad1550

    bad1550 Well-Known Member

    How do you set to receive LED notifications?
    I get sound but no flashing lights?
  5. rb312102

    rb312102 Android Enthusiast

    Not that I know of at this point. But now that we have root there is a chance a developer may be able to find the settings for notification LED and make it brighter.

    Go to settings> display and there is an option to turn LED on for notifications.
  6. bad1550

    bad1550 Well-Known Member

  7. JayWill72

    JayWill72 Lurker

    There is an app on the market called "Light Flow" that I played around with. It will let you change your notification colors to blue if you'd like.

    Setting the color to White in the app has an odd effect though. The LED flash is red, but it seems to use the App's flash speed setting properly, so it flashes very fast. This could be a solution for people who want a faster flashing LED and don't mind the red color.

    In the end, I was disappointed that the phone is limited to red and blue. I mean how hard is it to program more colors? I'm happy we have an LED at all, but it certainly seems like it was an afterthought.

    Sprint: Hey can you stick an LED on our version?

    Samsung: Sure! *whispers to engineer* (Just stick something on there fast with a couple colors ... don't spend a lot of time on it)
  8. rb312102

    rb312102 Android Enthusiast

    I just read that the paid version of this app
    Light Flow - LED Control

    Allows you to choose green and it will give you a purple color by lighting the red and blue at the same time.

    I haven't tested it myself.
  9. SanDiegoHB

    SanDiegoHB Lurker

    Hey all, I accidentally discovered a momentary PURPLE flash. *while the phone was charging* I held down the hardware power button until the phone turned off (about 7 seconds) and at one point I saw purple for just a brief moment.

    Hopefully this means a developer will be able to get purple (and a faster blink rate).

    Unrelated-is there a way to set up my account so I get notified by email when a thread I start/contribute to changes? thanks
  10. SanDiegoHB

    SanDiegoHB Lurker

    cancel this, I found it :eek:
  11. jennn

    jennn Member

  12. dib.1138

    dib.1138 Newbie

    i must have a freak phone.. mine does green, and a funky magenta as well..

    I will see if I can get a pic of it, and post.
  13. dib.1138

    dib.1138 Newbie

    ...ok, scratch that... now it doesnt. I swear, when I first plugged it in to charge, it was green, when fully charged.

  14. Im pretty sure individual leds can only have one frequency (color) so im assuming there are two leds, one blue and one red.
    thus there should be some way to get a puple color (red+blue) with root access. On my Tmobile g1 there was an app to change the led notification colors and blink rates. However I doubt that the brightness will be able to be increased, I think leds have a fixed brightness. I could be wrong though.
  15. dib.1138

    dib.1138 Newbie

    LEDs can be multiple colors. Most complex one I've seen is a 5 color. Most common micro-LEDS ( the tiny circuit board mounted ones) are 2 & 3 color . Flow current one way, get a blue light. Flow of current the other way, get red light. Flow current on both legs get a purple light. (red light+blue light). :hope that helps in determining how the software controls the led. just a matter of figuring what triggers current to flow on both legs of the led, to get a purple light.
  16. Well I figured out that to get the magenta light you have to tell it to light up "green" (at least via handcent)
  17. Jaiess

    Jaiess Lurker

    If You have whatsapp you can change the led from green red blue cyan magenta yellow and white - so it makes no sense why we can't just change it to any of these colours in the settings on Samsung s3.

    If anyone figures it out please let me know :)
  18. Speed Daemon

    Speed Daemon Android Expert

    AFAIK the off-screen notification LED lamp is capable of showing a couple of colors, but isn't a true full color RGB device like the screen. Each color is a separate physical LED device, with all of them shining through the same window. Just because they're there doesn't mean that the phone has the control logic (ie. DMX) to do what you want.

    It might be possible to hack the Linux kernel to allow a user mode program to try to provide DMX-like functions. If you want it enough to ask the various Android hackers to include it in their projects, go to the forums they haunt and start lobbying for it. Sometimes all you need to do is ask. No guarantee, of course.
  19. someguyatx

    someguyatx Well-Known Member

    The led only supports 2 colors blue and red. White works too but its really fast blinking red. The app blink works great.

Samsung Epic 4G Touch Forum

The Samsung Epic 4G Touch release date was September 2011. Features and Specs include a 4.52" inch screen, 8MP camera, 1GB RAM, Exynos 4210 Dual processor, and 1800mAh battery.

September 2011
Release Date

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