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Fake Car Alarm Circuit - 555 tutorial

Tags: Electronic Circuit | Electronics


Fake Car Alarm Circuit

This is a very simple circuit to make using a 555 component and is recommended for the electronics beginner.

 

This page outlines how to make a simple theft detterant which may be just as effective. The idea is to have a flashing red led indicate that your car is protected. This device can protect your vehicle from potential thieves - it makes it look like your car has an armed alarm system installed, which causes thieves to pass by your car in search of an easier target.

 

 


The project can be broken down into three steps. Constructing the circuit, powering the circuit, and installation.

Constructing the Circuit

The circuit is build around a 555 IC.
555 IC
Nr. Name Description
1 Ground Ground Reference
2 Trigger sdfsdf
3 Output sdfsdf
4 Reset sdfsdf
5 Vcc +5 to +15v
6 Discharge sdfsdf
7 Threshhold sdfsdf
8 Control Voltage sdfsdf

Circuit Schematics

Circuit Schematics

Components

Annotation Value
C1 10uF
C2 0.1uF
D1 LED
P1 CONN_2
R1 10k
R2 150k
R3 330k
U1 LM555N

 

The Printed Circuit Board

3d model
Fake Car Alarm Circuit

Questions and Additional Information

For questions, additional information, or discussions regarding the project, enter the Electronics Forum.

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Comments
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Guest  - PCB(copper) and Silk Component Fake Car Alarm Cir   |Y-m-d H:i:s
Can you send me the PCB ?
I can't see it from link.
Thank's !

Raul
Reply
Guest  - fake blinking alarm question   |Y-m-d H:i:s
i was wondering if its possible to get a picture of each step done in this project. i love experiencing new things and this really caught my attention in trying new things especially with circuit and resistors. is it possible for you to even send me a copy of the module. i would be willing to purchase it from you.
please reply back at jesrick@hotmail.com
Reply
Guest  - error on schematic   |Y-m-d H:i:s
R3 can not be 330k! or the led not working..it has 470 in the photo..thinks
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Last Updated on Sunday, 21 June 2009 23:45