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Archives for 2023

LED Flashlight Circuit using 1.5 V Cell

Last Updated on January 2, 2024 by Swagatam 5 Comments

luxeon star 3.3 V LED

This LED flashlight circuit is able to power a Luxeon type LED with a single 1.5 V battery. This results in a miniature flashlight that will not run out quickly. By: P. Martin Basically it is a boost converter circuit which boosts the 1.5 V DC from a AAA cell and converts it into a […]

Filed Under: Lamps and Lights Tagged With: Cell, Flashlight, LED

Rat Repellent Circuit Diagram

Last Updated on January 2, 2024 by Swagatam 30 Comments

rat repellent continuous

Rats are a dreaded pest that may ruin houses, gardens, and other places. They harm furniture, electrical lines, and other objects in addition to being carriers of a number of illnesses. It makes sense that people would constantly seek for strategies to keep rats out of their gardens and houses. Using a circuit that repels […]

Filed Under: Pets and Pests Tagged With: Repellent

Check What’s Behind the Paint of a Used Car

Last Updated on January 2, 2024 by Swagatam Leave a Comment

Laminated iron E core

Some methods to hide a used car’s external deterioration include filling up rust holes, removing collision dents with putty, fiberglass, or epoxy, and painting the car. The outside condition of an automobile is very important to potential used car purchasers due to the high cost of extensive bodywork restoration. Here is a simple circuit concept […]

Filed Under: Automobile Electronics, Sensors and Detectors Tagged With: Behind, Check, Paint, Used

Blinking LED Bow Tie Circuit

Last Updated on January 2, 2024 by Swagatam Leave a Comment

bow tie LED circuit sound activated

In this article I have explained how to build an LED bow tie circuit which will activate and blink a few LED lights stuck on your bow tie in response to your voice sound. It means, the LED lights on your bow tie will flash and blink, whenever you speak, creating a very eye catching […]

Filed Under: Lamps and Lights Tagged With: Blinking, LED

Simple Home Automation Circuits

Last Updated on January 1, 2024 by Swagatam 2 Comments

frequency controlled door lock circuit

In this article I have explained a few useful yet easy to build home automation circuits which will help the user to create automatic electronic systems at home. What is Home Automation Home automation basically means converting many of the manually operated home electrical devices into automatically operated devices, through electronics. Today’s real home automation […]

Filed Under: Home Electrical Circuits Tagged With: Automation, Circuits, Home, Simple

Home Electromagnetic Radiation Detector Circuit

Last Updated on January 1, 2024 by Swagatam 5 Comments

home electromagnetic radiation detector circuit

The assembly proposed in these lines is an electromagnetic radiation detector (power and others) that allows the user to organize their living space with full knowledge. Circuit Description The sensor used for this design is a simple wire coil (L1) associated with the MOSFET transistor (T1) biased at the beginning of its conduction zone by […]

Filed Under: Sensors and Detectors Tagged With: Detector, Electromagnetic, Home, Radiation

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