Simple Electric Fencing Circuit

In this post we are going to make a simple electric fencing circuit which can protect your private property from animals and intruders and prevent them from gaining access. Note: Please precede this project only after obtaining proper permission from your local government. Intruders are everywhere and you have no idea when they will attack […]

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Door Lock Circuit using Digital Code

In this post we try to analyze a simple door lock circuit using digital code that needs to pressed with a unique sequence in order to activate the door lock system and unlock it. Anyone who has ever locked him or herself out with the front door key inside will appreciate the electronic door-opener described […]

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Simple Smoke Detector Circuit

A Smoke detector circuit is an essential system when it comes to maintain safety precaution for any establishment. Having a smoke detector installed makes life easy to save your establishment from any fire attack. Smoke detector is common these days and this project aim to detail the process to building the alert system. Smoke Detection […]

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Laser Operated Security Alarm Circuit

We all might have usually observed laser alarm system as an important part of security solution specifically for a location which ought to get hi-level security. Starting from a museum conserving priceless historical possession; to a safety bank vault; and even in thriller flicks where the protagonist is seen on and often tied in the […]

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Manufacturing Oxygen at Home – Circuit Diagram

  The post will explain how to manufacture or make oxygen at home in bulk quantity, using our AC mans as the supply source and without using salt. Everyone knows the possibilities of these kinds of two gases and how crucial they may be around the world. Oxygen is the life preserving gas without which […]

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Simple Door Security Alarm Circuit

This circuit produces a beep and/or lights up a LED if a person hits the door-handle from outside. The alarm system will signal until the circuit might be switched-off. The over-all circuit is encapsulated in a compact plastic-type or timber container and needs to be hanged-up to the door-handle using a thick cable link up […]

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How to Build a Laptop Anti-theft Security Alarm Circuit

The publish clearly shows a clear-cut security alarm circuit which could be utilized with any specific involved object for example a laptop which ought to be guarded, when an intruder attempts to approach the unit or tends to make an make an effort to steal it the associated alarm is immediately brought up. The circuit […]

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How to Make a Barcode Security Lock Circuit – Part1

A basic barcode scanner circuit is described down this page article utilizing simply a couple of ordinary components for example an opamp, an LDR and an laser light. Everyone has observed and are knowledgeable about these types of arrays of thick and thin lines which is often witnessed published on just about all kinds of […]

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How to Make a Barcode Security Lock Circuit – Part2

In the earlier post we mastered a basic barcode sensor circuit, here we are going to research precisely how the felt pulses could be changed for obtaining unique sets of high low outputs from the IC 4033 as a reaction to several barcodes designs. This excellent outputs may be then useful for triggering a lock […]

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