Electronics

                        Electric Shock Gun This is a fantastic circuit for self-protection. In case a burglar intrudes your house, you c...

This precision 1Hz clock uses just two ICs and one junction field-effect transistor (JFET) in conjunction with a commonly available crystal...

        Anti-Theft Alarm for Vehicles This simple and inexpensive anti-theft circuit for vehicles sounds an alarm simulating a police ...

Fan on/off Control by Light This circuit lets you turn on/off a fan by just directing torchlight or other light toward its light-depende...

      Mains Interruption Counter with Indicator This circuit counts mains supply interruptions (up to 9) and shows the number on a 7-seg...

Dog Caller Dog trainers use a whistle to call dogs. But why blow that irritating, loud whistle when the dog can hear a sound inaudible t...

Doorbell-Cum-Visitor Indicator This doorbell circuit can also give identification of the visitor to your home in your absence. When you’...

MOTOR CONTROL THROUGH PWM   M otion control plays a vital role in industrial automation. It is required in manufacturing plants of indu...

Led Torch LEDs are becoming increasingly popular in many lighting applications. White LEDs are now common in torches. Here’s a simple an...

Wireless Stepper Motor Controllers Here is a low-cost and simple wireless  stepper motor  controller using infrared signals. Using this c...