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Thread: password in to start car

  1. #1
    Maximum Bitrate Seraph's Avatar
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    password in to start car

    I know it's doable. I was thinking of using a keypad to punch in a 4 digit code to start the car. How would you go about doing that. I have some ideas yesterday but as we type, I am drawing blank today.

    L

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    Maximum Bitrate gizmomkr's Avatar
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    Im the past I know I have seen some keypad accessories for alarm systems that simply opened or closed a circuit after the correct code is entered.

    Here is a link to a circuit that would do the trick.
    http://www.mitedu.freeserve.co.uk/Ci.../Alarm/pad.htm

    A bit more searching , and I found this - http://www.hobbytron.net/9951.html they market it as a garage door opener, but it would work just fine for your purpose. You can also buy these things ready-to-go as garage door openers.

    The only iffy part would be the timing. If you just want to enable / disable the starter circuit, still using the key to start the car, just throw in some relays, and your all set.

    If you want to use this device instead of the key, you are going to have to monitor the voltage pattern of the cars electrical system, or tap the out of your tachomiter. (your rpms will jump, then settel as you crank and start the engine. ) both methods are comonly used by remote starter circuits.

    My alarm / starter unit has an aux input. when I momentarially contact this aux input, the alarms auto start circuit kicks in and starts the car.

    One final note - Tachomiter sensing is a bit more accurate. I recomend this to prevent over cranking.
    Gizmo-
    Techonlogy on Wheels
    http://www.hjnetworks.com/car

  3. #3
    Maximum Bitrate Seraph's Avatar
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    Cool. Just what I was looking for. Thanks a lot!

  4. #4
    Variable Bitrate
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    The cool factor on this is HUGE, but the security factor on this is LOW.. Please do not believe that this will be something that will prohibit theives from stealing your car. This thing would be so easy to hot wire it isn't even funny..

  5. #5
    Maximum Bitrate Seraph's Avatar
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    You should see the SVX(the car that I drive). I just look at the diagram for ign. system and it's damn easy to hot wire. Cool factor is nice. If anyone take my SVX, it will be pretty easy to locate. There are only 15000 ever imported and 25000 ever made. The resale factor for the SVX sucks so I am not worrying about that part.

  6. #6
    Raw Wave wizardPC's Avatar
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    Quote Originally Posted by Seraph
    You should see the SVX(the car that I drive). I just look at the diagram for ign. system and it's damn easy to hot wire. Cool factor is nice. If anyone take my SVX, it will be pretty easy to locate. There are only 15000 ever imported and 25000 ever made. The resale factor for the SVX sucks so I am not worrying about that part.
    so that's who makes that car (Subaru, according to your website). I see them pretty often, but never knew who made them
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  7. #7
    Maximum Bitrate Seraph's Avatar
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    Yes Subaru. They are fun to drive. Esp. in snow. The new WRXes are fast on the straight line but I can leave them in the dust in the "S" curves in the mountains.

  8. #8
    Constant Bitrate
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    To Start The Engine

    Quote Originally Posted by Seraph
    I know it's doable. I was thinking of using a keypad to punch in a 4 digit code to start the car. How would you go about doing that. I have some ideas yesterday but as we type, I am drawing blank today.

    L
    The easier way is to buy a remote start kit and rig it with the key pad.............

  9. #9
    Maximum Bitrate Seraph's Avatar
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    That's what I am going to do. I just order the remote start kit and keypad.

  10. #10
    Low Bitrate theedge's Avatar
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    Even cooler would be to use some of the biometrics systems.

    No punch codes, just your fingerprint.

    Ive been thinking of doing something like this. This would totally prevent anyone you dont want from finding the code (seeing you enter it, etc) and then using you car to get groceries. I think some of the system let you program in several people who can access it.

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