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Burglar alarm Circuit using IC 555

Frank Donald July 26, 2012 21 Comments

Burglar alarm circuit or Theft alarm circuits are quite common and different circuits uses different methods to detect intruders. The above circuit uses timer IC 555 to detect and sound alarm upon detecting intruders. The circuit is very easy to…
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Alarm Circuits

IC, Timer IC 555

Temperature controlled LED

Frank Donald July 22, 2012 1 Comment

This is one of the hobby circuits that we can build by our own in our home.The function of this circuit is to indicate the temperature levels using a simple LED. Moreover this temperature controlled led circuit can be used…
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Sensor Circuits

opamp

Disco LED Lights Circuit using IC 555

Frank Donald July 8, 2012 7 Comments

Disco LED lights Circuit was a fun thing. Anyone can construct this by their own. In this circuit we are going to use NE 555(IC 1) and CD 4017(IC 2). Usually NE 555 is used in variety of timer circuits,…
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LED Circuits

LED, Timer IC 555

PCB designing

Frank Donald June 25, 2012 8 Comments

PCB(Printed Circuit Board) is the heart of a electronic circuit.It provides the flow of voltage between various components and establishes a connection between them.So it was considered as the heart and soul of the electronics. And every electronics student definitely…
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Electronics

pcb

How to build electronic circuits by your own

Frank Donald June 17, 2012 1 Comment

Many of  us have great desire to build our own electronic circuits but don’t know how to do it.Here is some of the tips which may give some idea about how to build electronic circuits. But building your own circuit is…
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Electronics

sensor

What is Embedded Systems

Frank Donald June 10, 2012 2 Comments

Embedded systems in electronics has created a revolution and a great development among mankind.embedded systems had spread everywhere.Even machines weighing more than tons has been controlled by embedded systems… WHAT IS EMBEDDED SYSTEMS ? A embedded system is a computer…
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Embedded System

microcontroller, sensor

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