This circuit is designed to give a long duration timer to switch on and off any appliances.This circuit can offer upto 30 minutes of duration.Moreover this circuit can switch off devices like radio,Television etc.This circuit will help a lot in…
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This paper is all about a design for vehicle theft control system using GSM technology and Embedded technology.You can download the paper from the link given below.But before download it i would like to give you the overall description about…
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The increase in power demands in our life has made inverter necessary so why cant you do one instead of buying it.today this circuit will will teach you how to do your own inverter using transistors .Lets quickly move into…
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This is a ultra sensitive intruder alarm circuit diagram. Here the shadow of the intruder passing through few meters nearby can trigger this circuit to produce an alarm.Here the job is performed by means of a LDR(Light Dependent Resistor).Thus this…
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Circuit above is used to display counts in 7 segment display.Here we are employing two ICs and 7 segment to perform this action. IC1 NE555, IC2 CD 4033 and a seven segment display LT543. As we know IC 555 is…
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Here is a automated night lamp circuit which switches on when the sorrounding is dark.It was based on using a simple photocell for detecting the light intensity. The photocell has a specific character of giving low resistance around ten ohms…
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This is the circuit diagram of a simple electronic combination lock using IC LS 7220.This circuit uses a relay for controlling any type of device when the combinations of four digits are pressed.Keypads are used as input here to enter…
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