Car BackUp Alarm


Posted on Feb 5, 2014

The brake lights of the automobile trigger this circuit on and off. This save the annoyance of the alarm when it is not needed. This is an older circuit which was published in Popular Electronics Magazine, but still a good circuit today.


Car BackUp Alarm
Click here to download the full size of the above Circuit.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Switch Debouncing
    Korg Releases monotribe Drum Schematics
    Design Lasers
    1.5V to 5V/12V DC/DC Converter with LT1073
    make this solar powered fence charger
    simple field strength meter
    Laptop Protector
    Dimming the Nixies
    A touch switch lighting circuit



    Top