IC 555

LDR Sensor Based Sunset Lamp using IC NE555 Timer Circuit – photoresistor

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LDR Circuit

LDR Sensor LDR Sensor Based Sunset Lamp using IC NE555 Timer Circuit automatic lights flicker due to the change in light intensity at dawn and dusk.  So compact fluorescent lamps (CFLs)  are unsuitable in such circuits as flickering may damage the electronic circuits within these lamps. The circuit described here can solve the problem and switch … Read more

Burglar Alarm security circuit for home by IC 555

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Burglar Alarm security circuit

Burglar Alarm security circuit The Burglar Alarm security circuit shown here is used as a burglary alarm. LDR is kept in such a place that when the thief enters our house, a shadow falls on the LDR. A small beam of light is also needed to deliver an uninterrupted signal to the LDR. To obtain the best light source, we … Read more