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Thread: Miata Install

  1. #11
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    Quote Originally Posted by crazyhorse View Post

    Is the laptop powered off an inverter?
    I was wondering the same thing. I have a few old IBMs floating around.

  2. #12
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    Great, another Miata Installation.
    Looks great.

  3. #13
    Variable Bitrate Fraychild's Avatar
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    wow man - that is one nice setup - it looks really good bro'!
    I have an IBM Thinkpad T43 and I would've never thought about running it in my truck as a carpc - Great Job!!1
    VER. 3.0- Check out below:
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    車コンピュータ 3.0
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  4. #14
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    Thanks Guys

    The laptop is run off a standard 12V DC laptop power supply (16V output for Thinkpad). The power supply runs all the time (even when the car is off). That way the laptop can be powered in standby. The current draw when the laptop is in standby is very low (I measured 350mA), this should be ok for a couple days.

    The laptop goes into standby when the key is off. I wrote a small VB app that monitors the COMM port DTR pin which is connected to the normal switched radio power (which goes off when the key is off). The VB app monitors the DTR pin and puts windows in standby when that pin goes low (car turned off).

    The COMM RI (ring indicator) line is also connected to the radio power. When the car is turn on, the RI pin goes high and windows wakes up. This is an option (Wake on Ring) in windows.

    If anyone is interested in a VB app to shutdown via COMM I would be happy to share it.

    Because standby still uses vehicle power when the car is off. I will be developing a more sophisticated VB app and associated electronics that will monitor the car batt voltage and automatically put the laptop into hibernation when the voltage drops too low.

    O, the display is simply connected the switch radio 12V power.

    TJ

  5. #15
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    Looks real nice. I had the screen moundet that way in my '97... but too much glare. I'll be moving it into the dash a few inches this time around.
    Is this where the witty comment goes?
    97 Black pearl Mazda Miata MX-5 Carpc V2? maybee..

  6. #16
    Maximum Bitrate Sidewalksalvage's Avatar
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    Love how it came out... very nice sleek install... love how it all nicely fits behind the seat!

    now if only i could find another IBM laptop (ive found a few in the garbage but their is always something wrong with them......)
    Brown 2010

  7. #17
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    Display

    Quote Originally Posted by Stealth97 View Post
    Looks real nice. I had the screen moundet that way in my '97... but too much glare. I'll be moving it into the dash a few inches this time around.
    We are also finding the screen is just not bright enough with the top down. I really would like to keep the flush mount, so trying to come up with another way to make it brighter. Maybe I will exporer some alternate backside LCD illumination (thinking). As you can tell, we had to do a lot of cutting on that display to make it fit in the double din space. Lucky there was anough room inside the case around the actual screen that could be cut away. I wonder why someone cant make a display that fits inside a double din!

    If you get yours set back in the dash. I would be interested to see and hear how it comes out.

    TJ

  8. #18
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    Thinkpad

    Quote Originally Posted by Sidewalksalvage View Post
    Love how it came out... very nice sleek install... love how it all nicely fits behind the seat!

    now if only i could find another IBM laptop (ive found a few in the garbage but their is always something wrong with them......)
    My experience is those old Thinkpad laptops are usualy fixable (unless they are just plain broken from being dropped). The one we used was purchased at Goodwill for $50. It was also not working, but a new CMOS battery fixed that. The other nice thing is there are tons of parts available for them on EBay.

    Give your old Thinkpad some TLC and a second chance. You might be surprised what is can still do.

    TJ

  9. #19
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    Digital Picture Frame

    This is kind of off the subject, but the old Thinkpad's also make great digital picture frames. My mom loves hers. This Think pad only had a 1 gig hard drive, so it boots on the HD, and then uses a 1 gig memory stick for all the pics. Windows shuts the HD down after a few minutes, so its completely silent after that. It uses the Windows XP image slide show screen saver to display the pics on a time interval. That btw can also be installed and used on Win2000.

    The frame is timed to wakeup at 8AM and go into standby at 12AM.

    TJ
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  10. #20
    Maximum Bitrate Sidewalksalvage's Avatar
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    I love the picture frame idea!

    Yeah ive found a few thinkpads in the trash....the first the hdd controller was broken so it would mean replacing the mobo...so that was off... the second the screen was cracked and the processor was something like 200mhz... so not worth much there.... and i forget what the last was..... but yeah i love finding stuff in the garbage and making it work. I have 2 laptops a fujitsu and a micro-something that i have gotten working in the past and then sold!
    Brown 2010

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