Wireless Auto-Car Anti-Theft 2-Way Alarm

Discussion in 'The Projects Forum' started by GrehieL, Aug 15, 2014.

  1. GrehieL

    Thread Starter New Member

    Aug 15, 2014
    3
    0
    Hi from sunny Greece...
    I came up with an idea to make a 2-way alarm system for auto-moto by using RF transreivers and a vibration sensor...

    The idea is simple but i don't know if i can accomplise it..
    The main project is to convert the signal of a vibration sensor(such as if you move the car) to trigger a transmitter and sent a signal...So the receiver collects this signal and to output it to a buzzer which will alert you that the device detected a vibration...

    Is this possible?
    Thanks for viewing this and hoping for your advices-suggestions...!

    PS..Sorry about my English..!
     
  2. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
    4,769
    969
    Its already a function built it to some car/motorcycle alarms..
     
  3. GrehieL

    Thread Starter New Member

    Aug 15, 2014
    3
    0
    Yes i know but the purpose of this post is about DIY.
     
  4. alfacliff

    Well-Known Member

    Dec 13, 2013
    2,449
    428
    a place I worked sold those 30 years ago. there were a few problems, the choice of 27 mhz for the rf, and the vibration sensor, Kansas has wind, cars shake when the wind blows. one advantage I thought of for them, if your alarm, a pager on this system, went off, you could go out and close the door till whoever was stealing your stuff gave up.if you could come up with some surplus pagers for ricievers and transmitters for them, a latching relay or timed relay could be triggered by the vibration switch. and an input from the dome light on the car would be pretty good too.
     
  5. tcmtech

    Well-Known Member

    Nov 4, 2013
    2,034
    1,638
    Personally I am a fan of setting up vehicles with low level explosives under the drivers seat and a hidden kill switch! :D
     
  6. crutschow

    Expert

    Mar 14, 2008
    12,995
    3,229
    Just don't forget to disarm. Otherwise you could be a candidate for the Darwin award. :rolleyes:
     
  7. GrehieL

    Thread Starter New Member

    Aug 15, 2014
    3
    0
    Can we stick plz to the subject?
     
  8. alfacliff

    Well-Known Member

    Dec 13, 2013
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    the alarm we used to sell used the cars am fm radio antenna so nobody knew aboout it. a small duplexer between the existing radio and the alarm transmitter.
     
  9. bertus

    Administrator

    Apr 5, 2008
    15,646
    2,345
    Hello,

    May I also remind you that we do not allow automotive modifications over here.
    Please read the Terms of Service

    Bertus
     
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