1. Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
    Dismiss Notice

Car mmobiliser safety

Discussion in 'Automotive Electronics' started by SimonW, Feb 3, 2006.

  1. SimonW

    SimonW New Member

    Joined:
    Feb 3, 2006
    Messages:
    45
    Likes:
    0
    Location:
    Sale, UK
    Dear All,

    I have searched and read the forums regarding home made car mmobiliser.

    Being experienced in electronics, I will be able to put some relays in series with the cars starter soleniod and ignition.

    I will be using the wonderful PIC to control relays and to have access control.

    How can I ensure that the relays will not revert back to the immobilised state while I am driving??.

    Is there any other signal in a car which only becomes live when the car is running that I can incorporate into the PIC cct??


    Cheers
     
  2. akg

    akg New Member

    Joined:
    Sep 2, 2005
    Messages:
    1,404
    Likes:
    1
    Location:
    India
    what is meant by 'running' , engine on or car moving?
    engine on->ignition signal/alternator
    car moving->some use electric signals for speedometer
     
  3. Cortex

    Cortex New Member

    Joined:
    Feb 4, 2006
    Messages:
    2
    Likes:
    0
    hello
    i think u sould speacial automotive parts.
    or just add a triac in serie with the ignition key(also if ur pic turn crazy , the car can still running but cannot be restarted)
     
  4. dave

    Dave New Member

    Joined:
    Jan 12, 1997
    Messages:
    -
    Likes:
    0


     
  5. 1Steveo

    1Steveo New Member

    Joined:
    Jan 3, 2004
    Messages:
    114
    Likes:
    0

    Use the oil pressure.
     

Share This Page