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Solved: Power On My PC Remotely Using a Cell Phone

Discussion in 'Do It Yourself (Not Computer-Related)' started by tmetford, Dec 20, 2011.

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  1. tmetford

    tmetford Thread Starter

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    Hi, I´d like to hear from anyone who may know how to power on a PC remotely using a cell phone (wired to the target PC) when the cell phone is called from another phone.
    Okay, so I´ve been able to power on my Office PC remotely for some time using an ethernet enabled device on the PC´s LAN(emacsys.com) : this device´s browser interface enables me to click the PC´s "On Button". The net result is that the PC powers on and I can then use the PC to remotely control the heating system and other devices at my office.
    All very useful and great until there´s a power cut or something else that knocks the ethernet device offline and, when that happens, it cannot re-establish its ethernet link. Hence, unfortunately, I´m then unable to power on the office PC and I lose control of my office system! Arrrgh!
    So, this is why I need some help to be able to start the PC by some other means and I came up with the idea that a mobile phone´s external speaker connection may provide enough e.m.f. to close a small relay switch (i.e. the PC´S On button), hence enabling me to connect once more with the PC remotely and reboot the link for the ethernet device once again and, in turn, re-establishing control of my office without having to physically travel all the way there to perform the reconnection.
    So, in brief how can a mobile phone (one that can be permanently assigned to this PC and doesn´t need to be used anywhere else) be wired up to a PC to power it on?
    I have some basic knowledge of electronics and am willing to study the subject more so I´m able to build the necessary circuitry for the job. However, I don´t know how to tap into and modify/amplify the electric signal that comes through the cell phone´s external ear buds in order to close a relay that power´s on the PC.
    Can you help please?
    Many thanks in anticipation.
    Tim Metford
     
  2. Squashman

    Squashman Trusted Advisor

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  3. DaveBurnett

    DaveBurnett Account Closed

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  4. tmetford

    tmetford Thread Starter

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    Thank you Squashman, that´s a really helpful link you found for me!
    I look forward to putting it together when I return from my holiday.
    Merry Christmas!
    Tim
     
  5. G7OEA

    G7OEA

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    I do believe that this may be a solution to a problem that did not exist. I need to switch on my pc remotely i use wakeup on lan. If you’re skilled enough to hack a cell phone then you should be able to configure a VPN. Plus it does not need a second phone subscription and you also won't end up on the FBI watch list. As Dave Burnet said BOOM :)
    Kudos for actually doing it tho ;)
     
  6. tmetford

    tmetford Thread Starter

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    Hi, and thanks for your comment. It's a great idea to use a wake up on LAN, or WAN (it'd have to be via the internet).
    I've not tried a Wake on LAN GUI before but not managed to get it to work, so would you tell me how you've done It please. Thanks
    Tim
     
  7. tmetford

    tmetford Thread Starter

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    Correction: I have tried a Wake on LAN GUI before but not managed to get it to work within a VPN between my office and home though it worked fine on my LAN: hence my request for futher information about how to do it given that you've succeeded in this?
     
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