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  1. #1
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    Li-Fi Networks Exposure

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    Li-Fi Networks Exposure

    Has anyone here dealt with any li-fi networks... ???
    if so do you remember the access point hardware used???
    Was it in a business or home???
    and if business... small, large etc???
    trying to figure out if this is actually being used as yet...
    Sad To Say I Don't Have a Life
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  2. #2
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    Re: Li-Fi Networks Exposure

    Quote Originally Posted by n25an View Post
    Has anyone here dealt with any li-fi networks... ???
    if so do you remember the access point hardware used???
    Was it in a business or home???
    and if business... small, large etc???
    trying to figure out if this is actually being used as yet...
    Is this what you're referring to???Li-Fi Networks Exposure
    Li-Fi - Wikipedia

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  3. #3
    Service Manager 1,000+ Posts
    Li-Fi Networks Exposure

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    Re: Li-Fi Networks Exposure

    yep
    trying to see if it has hit reality as yet... and not just a pipe dream...


    Quote Originally Posted by qbert69 View Post
    Is this what you're referring to???Li-Fi Networks Exposure
    Li-Fi - Wikipedia

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  4. #4
    Retired 10,000+ Posts
    Li-Fi Networks Exposure

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    Re: Li-Fi Networks Exposure

    Quote Originally Posted by qbert69 View Post
    Is this what you're referring to???Li-Fi Networks Exposure
    Li-Fi - Wikipedia

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    Sounds to me like many TV remotes that require line of sight to function.

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    Re: Li-Fi Networks Exposure

    Quote Originally Posted by slimslob View Post
    Sounds to me like many TV remotes that require line of sight to function.
    LOS Remote uses Infrared...you can tell so by pointing it a a security camera which is capable of night vision & pushing the buttons...will be seen as flashes on the security monitor!!!Li-Fi Networks Exposure

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  6. #6
    Retired 10,000+ Posts
    Li-Fi Networks Exposure

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    Re: Li-Fi Networks Exposure

    Quote Originally Posted by qbert69 View Post
    LOS Remote uses Infrared...you can tell so by pointing it a a security camera which is capable of night vision & pushing the buttons...will be seen as flashes on the security monitor!!!Li-Fi Networks Exposure

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    Yes and that is Li-Fi. If you look at the Wikipedia page, Li-Fi (short for light fidelity) is wireless communication technology which utilizes light to transmit data and position between devices. It is also visible with night vision goggles. That makes it very unsecure unless it is encased in fiber optics. Of course fiber optics is not considered wireless.

  7. #7
    Former KM Senior Tech 500+ Posts srvctec's Avatar
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    Re: Li-Fi Networks Exposure

    Quote Originally Posted by qbert69 View Post
    LOS Remote uses Infrared...you can tell so by pointing it a a security camera which is capable of night vision & pushing the buttons...will be seen as flashes on the security monitor!!!Li-Fi Networks Exposure

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    Or just use your cell phone camera and watch the screen while you press a button on the remote. Old trick I learned decades ago when an instructor at a copier training class mentioned it and we were all shocked it worked. We didn't have to use those IR detector strips any more to detect IR coming from sensors in the machines.

    Oh, and in reference to Li-Fi, I'd never even heard of the term before so thanks for teaching me something, n25an since I love learning stuff.
    Started in the copier service business in the fall of 1988 and worked at the same company for 33.5 years, becoming the senior tech in 2004 but left to pursue another career on 4/29/22.

  8. #8
    Service Manager 1,000+ Posts
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    Re: Li-Fi Networks Exposure

    Quote Originally Posted by srvctec View Post
    Or just use your cell phone camera and watch the screen while you press a button on the remote. Old trick I learned decades ago when an instructor at a copier training class mentioned it and we were all shocked it worked. We didn't have to use those IR detector strips any more to detect IR coming from sensors in the machines.

    Oh, and in reference to Li-Fi, I'd never even heard of the term before so thanks for teaching me something, n25an since I love learning stuff.
    I just tried looking at the remote with my cell phone camera, I don't see any activity when I press the buttons.

  9. #9
    RTFM!! 5,000+ Posts allan's Avatar
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    Re: Li-Fi Networks Exposure

    Hackers found that you can trick voice activated devices like cell phones that use Siri or Alexa to activate smart devices by playing back an IR signal pointed to the microphone!
    So if the device is visible from a window in your house a smart lock can be opened silently.

    Something to do with the design on the compact microphones that allows it?
    Whatever

  10. #10
    Former KM Senior Tech 500+ Posts srvctec's Avatar
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    Re: Li-Fi Networks Exposure

    Quote Originally Posted by anothertech View Post
    I just tried looking at the remote with my cell phone camera, I don't see any activity when I press the buttons.
    Weird that you can't get it to work. I just checked all my IR remotes and the results are the same. Never had it not work unless your remote isn't IR. I just took this video.

    FYI, it's easier to see in a dimly lit area and it depends on how much power your remote's IR LED(s) put out. Some will show up better than others.

    Also, it doesn't have to be a cell phone camera, any digital camera will work.

    Last edited by srvctec; 04-20-2020 at 09:53 PM.
    Started in the copier service business in the fall of 1988 and worked at the same company for 33.5 years, becoming the senior tech in 2004 but left to pursue another career on 4/29/22.

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