transistor BC547

PIR Motion Sensor Light Build your own PIR Motion Sensor Light

In today's world of smart technology, creating simple yet effective DIY projects without the use of microcontrollers or…

Simple Keyhole Lighting Device Circuit Simple Keyhole Lighting Device Circuit

Sometimes when we reach home in the night it’s hard to unlock the door lock, as we are not able to find the keyhole because of…

Simple Lie Detector Circuit using Transistors Simple Lie Detector Circuit using Transistors

Electronics has always been fun to play with, once we learn the very basics of how each component works and how to use them in…

Automatic Street Light Circuit Using Relay and LDR Automatic Street Light Controller Circuit Using LDR and Relay

You have seen street light which automatically gets turned on in the night and gets turned off in the morning or day time,…

Panic Alarm Circuit using 555 Timer IC Panic Alarm Button Circuit using 555 Timer IC

A Panic Alarm Circuit is used to send an emergency signal immediately to the people in nearby location to call for help or to…

Simple preamplifier Circuit using Transistor Simple Preamplifier Circuit using Transistor

Amplifier is an electronic circuit or device which is used for amplification purpose and used mainly in sound reproduction as…

Bike/Car Turning Signal Indicator Circuit using 555 Timer IC Bike/Car Turning Signal Indicator Circuit using 555 Timer IC

In our daily life we see vehicles turning indicators when they turn left or right. It looks like Simple LED Blinking. But it's…

Simple Smoke Detector Alarm Circuit Simple Smoke Detector Alarm Circuit

Smoke Detectors are very useful in detecting smoke or fire in buildings, and so are the important safety parameters. In this…

Cell Phone Detector Circuit Cell Phone Detector circuit

Cell Phone Detector is a circuit that can sense the presence of any activated cell-phone nearby and gives an indication of…

Simple Transistor Latch Circuit Simple Latch Circuit with Transistors

Latch basically means “to become fixed in a particular state”. In Electronics, Latch Circuit is a circuit which locks its…