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…
Read more
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…
Read more
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…
Read more