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cyb0rg777

Alarm - With Infrared Remote

I built this circuit recently and decided to do a rough schematic and post it here.It is a car alar

  1. cyb0rg777
    I built this circuit recently and decided to do a rough schematic and post it here.It is a car alarm.You need to mount the sensor and led where they are visible from a window .I made the transmitter out of smt parts and mounted it in a keychain led flashlight.when you turn it on the led comes on and it waits for a signal from the sensors .If it gets a signal from a sensor it turns on a relay which I'm connecting to my horn.You have to have line of sight and be pretty close to control it .

    Could anyone suggest some sensors?

    I made my own vibration sensor.
    I took a piece of a retractable radio antenna and hooked it to one lead.
    I hooked the other lead to a nail hung in the center of the antenna tube.
    then I hung the whole thing so that if you park on a hill it will lean .
    Sort of a wind chime crossed with a bell.
    I had to use really fine motor wire with thread to support the weight.
    What would be awesome is If the whole vehicle body was made into a proximity sensor.

    Here is the ROUGH drawing of the schematics and the .asm files.

    And thanks to Nigel for showing me how to do the infrared stuff :)
    There are some connections not showing such as power and a 5v regulator but you get the idea. Don't forget when you build the transmitter the button cells have a positive shell . I assumed it was negative now I'm trying to get them in backwards.