Homemade Mosquito Killer Circuit

Jun 29, 2015

The post explains a simple mosquito electrocution net, or mesh circuit which can be easily built and installed on a home window for blocking and killing an in-surge of mosquitoes. The idea was requested by Mr. Ram.

Solar Drip Irrigation System for Indoor Gardens

Jun 27, 2015

The post explains a water level controller circuit which can be used for implementing an unmanned continuous drip irrigation to a home based garden. The idea was requested by Mr. Sandipan.

220V Transformerless Constant Current LED Driver Circuit using a single IC

Jun 25, 2015

The MBI6001 series of ICs are designed to work with mains AC inputs and convert it into a lower voltage DC output which may be suitably used for driving a group of series connected LEDs.

CREE XM-L T6 LED Driver Circuit

Jun 24, 2015

This article explains how to illuminate a Cree XM-L T6 LED using a current controlled driver circuit while the supply input is from a battery, or in case a mains SMPS is intended as the driver unit. The idea was requested by Mr. Jaco.

Industrial Valve Switching Detector Indicator Circuit

Jun 22, 2015

The following post explains a circuit idea which can be used for identifying the switching pattern of set of valves from a remote location, using just two wire from the valve sets to the indicator circuit at the distant location. The idea was requested by Mr. Andreas.

2 Pin Bi-Color LED Flasher Circuit

Jun 19, 2015

This transformerless mains power supply circuit will allow flashing of a Bi-color 100 LED string, in an alternately switching red, green effect.

How Mosquito Traps Work

Jun 18, 2015

Mosquito and other forms of fly trap mechanisms work by making use of luring techniques for attracting the insects, which involve carbon dioxide gas, body odor simulators and ultraviolet lights. These traps become very useful in areas which may be highly infested with mosquitoes, however due to its high costs such traps are not very commonly used everywhere.

Dog Barking Preventer Circuit

Jun 16, 2015

The discussed circuit is designed to discourage dogs from barking in the selected zone by the generation of a synchronized ultrasonic sound waves in response to a few initial barking of a particular dog.

PWM Motor Soft Start Circuit

Jun 13, 2015

The post explains an effective PWM motor soft start circuit which can be used for enabling heavy motors with a soft start and thus prevent the equipment from drawing dangerous high currents.

Up/Down LED Indicator Circuit using LM3915

Jun 12, 2015

This circuit can be used for moving an LED bar graph in the upward sequence or downward sequence through a couple of push button switches. The concept can be implemented for many other useful applications.

PWM LED Light Intensity Controller Circuit

Jun 10, 2015

The post explains a simple IC 555 based PWM controller circuit which may be used for controlling the intensity of a specified LED bank. The idea was requested by Mr.Rajdeep.

Atomizer Circuit for E Cigarettes - PWM Controlled

Jun 9, 2015

The post details a simple transistorized PWM atomizer circuit for E Cigarettes which may be used for controlling the filament heat levels of an atomizer. The idea was requested by Mr. Dave.

Generate Free Electricity from Sea Wave

Jun 8, 2015

The set up explained in the following article is an easy to build design and can used for generating huge quantities of free electricity from sea wave continuously.

Simplest Windmill Generator Circuit

Jun 6, 2015

The post explains how to make a simple windmill generator circuit which can be used for charging batteries, or for operating any desired electrical equipment, all through day and night, free of cost.

Generate Electricity from Shoe while Walking

Jun 5, 2015

In this post we will learn how to generate electricity from our shoe while walking. This electricity can be simultaneously used for charging a cellphone battery.

Free Cellphone Charger Using Pendulum Generator

Jun 3, 2015

This pendulum electricity generator can be used in villages for charging cellphones free of cost just by applying momentary pushes to the pendulum frequently or as desired throughout the day.

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