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Security

Build a Homemade GSM Car Security System

Last Updated on May 16, 2026 by Swagatam 54 Comments

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This super simple circuit design of a gsm car security system really works.Don’t believe it? Find out and learn the simple method of constructing it. How would you feel if you had the power of controlling your vehicle through your own cell phone, from any part of the world? Learn more how to build a […]

Filed Under: Automobile Electronics Tagged With: Build, GSM, Homemade, Security, System

Infrared Car Door Lock Security Circuit

Last Updated on May 16, 2026 by Swagatam Leave a Comment

IR transmitter compressed

In this post I have explained how to build a simple yet foolproof infrared based remote control, which can be used for locking and unlocking any vehicle door through a personal remote handset. The remote controlled vehicle door lock is foolproof since it works only with a specific IR frequency range, and will not respond […]

Filed Under: Automobile Electronics Tagged With: Door, Infrared, Lock, Security

Simple Motorcycle Security Alarm Circuit

Last Updated on May 16, 2026 by Swagatam 4 Comments

motorcycle anti theft alarm circuit diagram using tilt switch and TTP223

In this article I have explained a simple motorcycle ant-theft security alarm circuit using a tilt switch and a TTP223 touch switch. The circuit was requested by Mr. Sergei, as given below. Design Request and Specifications I am a motorcyclist and I would like to ask you to design a simple and cheap alarm system […]

Filed Under: Automobile Electronics, Security and Alarm Tagged With: Alarm, Motorcycle, Security, Simple

Cell Phone Call Alert Security Circuit

Last Updated on May 16, 2026 by Swagatam 21 Comments

carsecuritycallbackcircuit

This circuit will give call back alerts in the form of blank calls on your cell phone whenever it senses a break in or intrusion inside the particular restricted area where it has been installed for the intended security monitoring. Introduction The cell phone call alert security system circuit which needs to be installed incorporates […]

Filed Under: Automobile Electronics Tagged With: Alert, Call, Cell, Phone, Security

Make this Home Security Project Using Arduino – Tested and Working

Last Updated on May 14, 2026 by Swagatam 2 Comments

Scan 6

In this article we are going to see how to build a home security system circuit using arduino which might save your home from intruders one day. Housebreaking happens every few seconds in the world. By the time you read this sentence, crooks already broke into someone’s house. A golden rule: Prevention is better than […]

Filed Under: Arduino Projects Tagged With: Arduino, Home, Project, Security, Tested, Working

Password Security Lock Circuit Using 4×4 Keypad and Arduino

Last Updated on May 14, 2026 by Swagatam 5 Comments

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In this post I will show how to construct a password security lock circuit, which can be accessed by a 6-digit password. To be more precise it is alpha numeric password. Hardware for this Project We are going to utilize 4×4 keypad, which consists of 0 to 9 decimal values, two special character ‘#’ and […]

Filed Under: Arduino Projects Tagged With: 4x4, Arduino, KeyPad, Lock, Password, Security

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