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Thread: Hoping to power laptop without soldering to power

  1. #11
    MySQL Error soundman98's Avatar
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    my idea is very similar to punky's idea to use the modem port. the difference being that you would not add any connectors to the computer, but use a connector that you would not normally need on the computer. but but both ideas are less 'automatic' then bugbytes. in mine, or punky's ideas, you would have a connector on your laptop you would need to manually disconnect every time you wanted to take the laptop out of the car..

    also, the power button wires would be connected to the corresponding terminals on the carnetix power supply-- this way, the 1900 will turn the laptop on/off depending on if it sees +12 volts on the 'ACC' input of the 1900..

  2. #12
    VENDOR - XoByte M3Sharif's Avatar
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    Quote Originally Posted by kingmatt View Post
    I like the sound of the xobyte solution but its the cost that's throwing me... xobyte (~$150 to Canada) still needs a regulated power source. So I'm looking at a minimum of $300 (xobyte + Carnetix, for example) to make a go of it.

    Having said that, if people tell me that xobyte will 100% solve my problems I'll likely go for it. Just looking for real world examples of it working at this point....

    Hi,

    I'm the local MP3 Forum rep for XoByte. I just wanted to let you know that our miniSpark StartUp/ShutDown Controller has been used with a variety of Desktops/Laptops/Netbooks in our Validation Lab and more importantly by our customers.

    An independent review of our unit was done by an MP3Car Rep. You can find it here http://www.mp3car.com/blogs/141605_H...ontroller.html.

    If you are unsure whether WOL is supported on your specific PC there's an App at our Site you can download and run on any machine to check. The link to the App is at the bottom of this page http://www.xobyte.com/support.html.

    Lastly we offer our customers unlimited tech support to get their systems up and running and a full money back guarantee (no restocking fees) if they aren't fully satisfied with our product within the first 2 weeks of use.

    Good luck with your project!!!

  3. #13
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    Thanks for the post about Minispark... its definitely still roaming around in my head as an option. A couple of questions if you don't mind:

    1) WAKE ON LAN

    I did use the utility on your site and confirmed that WOL/Magic Packet works on my netbook. I also put together a little loopback cable and tested it out... its works perfectly bringing my netbook out of hibernate. Except for one major thing... as soon as power is cut to my PC (which it would be with the car's ignition off) the ethernet port is turned off on my netbook. This means it no longer notices the WOL signal.

    I'm assuming I would have the same problem with the Minispark?


    2) POWER

    Is it recommended/required/dumb to combine the Minispark with something like a Carnetix P1900?

    Thanks,
    Matt

  4. #14
    Variable Bitrate heezer7's Avatar
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    Use a DC socket and plug. Either have the plug on a short wire hanging out of mount it on/in the side of the laptop.

    http://www.google.com/images?client=...w=1680&bih=827

  5. #15
    VENDOR - XoByte M3Sharif's Avatar
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    Quote Originally Posted by kingmatt View Post
    Thanks for the post about Minispark... its definitely still roaming around in my head as an option. A couple of questions if you don't mind:

    1) WAKE ON LAN

    I did use the utility on your site and confirmed that WOL/Magic Packet works on my netbook. I also put together a little loopback cable and tested it out... its works perfectly bringing my netbook out of hibernate. Except for one major thing... as soon as power is cut to my PC (which it would be with the car's ignition off) the ethernet port is turned off on my netbook. This means it no longer notices the WOL signal.

    I'm assuming I would have the same problem with the Minispark?


    2) POWER

    Is it recommended/required/dumb to combine the Minispark with something like a Carnetix P1900?

    Thanks,
    Matt
    Hi,

    1) You are absolutely correct. Wake On LAN requires that the PC be powered prior to the WOL packet being sent to it. If the PC is always connected to a Power Source and it is Shutdown or Hibernating the power drain should not be that significant to cause any issues with the car battery. Of course the exact amount of power consumed would vary from one machine to the other.

    A couple of our customers have told us they use one of miniSpark's General Purpose Outputs to control a Relay which would cut power to the PC and then re-supply it prior to needing to wake the machine. The miniSpark Application running on the PC will allow you to properly sequence the General Purpose Output to activate the relay before the WOL packet is sent. I'm not sure if every PC out there can deal with power being removed after it is shutdown and then re-supplied just prior to the WOL packet.

    2) I know it would be an expensive solution but no it's not dumb at all. It's a matter of preference. Our CEO has an OPUS power supply for a desktop PC located in the trunk of his car and uses miniSpark for StartUp/Shutdown control functionality.

    Another (cheaper) suggestion would be to purchase a PC Power Brick that comes with a Cigarette Lighter Adapter and use that for power. That's how I power my Dell Laptop which luckily came with a Power Brick that had an AC and Cigarette lighter adapter.

  6. #16
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    Quote Originally Posted by M3Sharif View Post

    2) I know it would be an expensive solution but no it's not dumb at all. It's a matter of preference. Our CEO has an OPUS power supply for a desktop PC located in the trunk of his car and uses miniSpark for StartUp/Shutdown control functionality.
    Would you be able to describe how he has it wire up? Or how you'd recommend a Carnetix P1900 be wired in conjunction with a Minispark?

    I'm trying to figure out if the Carnetix would supply 19V power to my laptop and then 12V power to the Minispark. The Minispark would then control the startup/shutdown with WOL and could also power my USB hub. Does that sound about right?

  7. #17
    VENDOR - XoByte M3Sharif's Avatar
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    Quote Originally Posted by kingmatt View Post
    Would you be able to describe how he has it wire up? Or how you'd recommend a Carnetix P1900 be wired in conjunction with a Minispark?

    I'm trying to figure out if the Carnetix would supply 19V power to my laptop and then 12V power to the Minispark. The Minispark would then control the startup/shutdown with WOL and could also power my USB hub. Does that sound about right?
    Yes you could use the Carnetix to power the PC, the miniSpark (since the secondary output can be configured for 12V), and the USB hub. Another option is to use a simple fuse tap (which we also offer on our site) to power our device directly from the cars supply.

    The miniSpark General Purpose outputs can then be used to control relays that could disconnect power to the hub or any other device powered by the Carnetix based on our Control Suite Application configuration settings.

    The possibilities are endless :-)

  8. #18
    Constant Bitrate Startingline13's Avatar
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    Quote Originally Posted by heezer7 View Post
    Use a DC socket and plug. Either have the plug on a short wire hanging out of mount it on/in the side of the laptop.

    http://www.google.com/images?client=...w=1680&bih=827
    Agreed. I use this set up as well. Two barrel plugs out of the side of my laptop, and I just plug them in/out when I remove it from the car.

    As for Carnetix, they are garbage. I've had three of them and tried them on a number of occasions. The customer support is terrible too. I would suggest looking for other options.

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