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Electronics keypad switch

Discussion in 'Modding' started by hvtopiwala, 31 Dec 2006.

  1. hvtopiwala

    hvtopiwala What's a Dremel?

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    i want to turn on my computer using a 12key keypad. basicly, i would enter teh correct code and that would let me use the power button on my case. if i do nto enter the correct code, the power button on the computer doesnt do anything.
     
  2. Warrior_Rocker

    Warrior_Rocker Holder of the sacred iron

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    One option is to take the keypad off of one of those cheap electronic safe's. The ones that let you program in your own code and when entered it releases a solenoid. You could rewire that to allow the power button to be pressed.

    Another option which will be more complicated but provide better results will be to use a PIC controller hooked in with a keypad. That way you can program it from start to finish.

    Other than that I am not aware of any other options for doing this. Maybe someone else can open up that door.
     
  3. trailblazer

    trailblazer What's a Dremel?

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    You can buy a kit from here , it costs about ten pounds and has a relay output. It's a kit so you might need to do a fair bit of soldering and it needs a 12 volt supply.
     
  4. kylelnsn

    kylelnsn What's a Dremel?

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    I think that it would be possbile with that kit but certianly alot of soldering to do on that! good price and good site! looking foward to seeing a result on this?!
     
  5. hvtopiwala

    hvtopiwala What's a Dremel?

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  6. JaredC01

    JaredC01 Hardware Nut

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    Should work without any problems. You would connect the power button to the relay. You will also have to do what it says about adding a transistor...

    This way, when you enter the correct code, you will turn the computer on. Without it, the 'power button' would be pressed until you entered the correct code.
     

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