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Thread: An introduction and a question (laptop remote turnon)

  1. #1
    ZiG
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    An introduction and a question (laptop remote turnon)

    Hi everyone.

    I'm currently installing a carputer into my turbocharged 1993 Nissan 240sx. I won't bother posting pictures because it looks like any other 240 out there from the outside, I spend my money on go fast parts, not show.

    Anyhow, I'm currently building the following setup:

    -Dell Inspiron 3500 laptop
    -Lilliput 7" touch screen

    Functions will be:

    -engine monitoring and tuning via my megasquirt ECU
    -media (connected to my stereo's line in)
    -gaming



    Ok, so onto my question..

    I've got this laptop beside me right now and I'm trying to figure out a way to power it on by remote. It has an RS-232 serial port on it (it's also on the docking station) and I would like to use it to power it on, except I'm not sure how to do that. I've searched these forums (actually I found this place through a google search on the subject) and I found one person saying he was using an RS-232 cable from an old UPS system to turn his laptop on! The thing is, I can't find any info on how exactly, and when I looked for UPS serial cables, they all look just like any other serial cable out there.. So how is it done? I'm hoping someone here can help me out.


    Thanks,

    ZiG

  2. #2
    Variable Bitrate
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    most people with laptop setup on this forum soldered 2 wire on the pushbutton on/off switch.

    With docking station it's even better, just solder the docking station on/off switch.
    Extend the wire to your dashboard.

  3. #3
    ZiG
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    Yeah, unfortunately for me, my docking station doesn't have a power button.

  4. #4
    Neither darque nor pervert DarquePervert's Avatar
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    You probably have a port replicator, not a docking station.
    Have you looked in the FAQ yet?
    How about the Wiki?



    Under normal circumstances, a signature would go here.

  5. #5
    Newbie xelz's Avatar
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    in my case, got a thinkpad, i opened it up and realized that the power button was integrated to my keyboard (you might be lucky and it could be separate). tested all the connection from the keyboard w/ a volt meter to see which connection controls the power, soldered 2 wires, and connected them to the modem line (i never use the modem). and i just connect a telephone wire to a push button. works great!

    other people don't connect it to the modem, they usually make another input in the back of their laptop. i think i'm to lazy to do that. oh and i disabled the modem in the bios. i'm not sure what would happen if things try to transmit to the modem...

  6. #6
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    Quote Originally Posted by xelz View Post
    in my case, got a thinkpad, i opened it up and realized that the power button was integrated to my keyboard (you might be lucky and it could be separate). tested all the connection from the keyboard w/ a volt meter to see which connection controls the power, soldered 2 wires, and connected them to the modem line (i never use the modem). and i just connect a telephone wire to a push button. works great!

    other people don't connect it to the modem, they usually make another input in the back of their laptop. i think i'm to lazy to do that. oh and i disabled the modem in the bios. i'm not sure what would happen if things try to transmit to the modem...
    hi,

    could you tell me which pins control the power?
    i have tried to solder something to the carbon disc under the power button, but i think i have damaged one carbon track, what can i use to repair it, i can not power up again, i think that track is necesary...

    thanks in advance...

  7. #7
    Variable Bitrate UnusuallyGenius's Avatar
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    Quote Originally Posted by ZiG View Post

    -gaming
    really?

    sorry but this makes no sense to me
    - Project: Unified Car Control
    - Original OpenMobile Interface Designer

  8. #8
    North of the land of Hey Huns
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    Quote Originally Posted by UnusuallyGenius View Post
    really?

    sorry but this makes no sense to me
    c'mon man... don't you guys tailgate up north?
    "stop with the REINSTALLS, what do you think we got some lame-o installer!!!" - mitchjs
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  9. #9
    Variable Bitrate UnusuallyGenius's Avatar
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    Quote Originally Posted by malcom2073 View Post
    c'mon man... don't you guys tailgate up north?
    haha...of course we do, you should see a michigan vs. michigan state game. there is more beef there than on a ranch.

    Never used my carputer to grill though...and we tend to do our gaming on capable rigs in the basement, with all the windows boarded up with the wives yelling at us to keep it down.

    Never gamed in a vehicle...maybe i should travel more
    - Project: Unified Car Control
    - Original OpenMobile Interface Designer

  10. #10
    ZiG
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    Wow I definitely forgot all about this forum/thread til I got an email just now informing me of a reply :S


    Anyway since writing that post I got myself a different laptop and a different docking station (the old one WAS a docking station btw) with a power button. Wired it to a momentary pushbutton on the dash, and it's been working great ever since.


    Regarding gaming, yeah, it's for shows and such. Mostly though I've just flipped on a game while at late night car meets. Works great, though I will admit touchscreen duck hunt is just not a challenge at all..

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