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Engineering Projects For You

Free electronics projects, circuit diagrams and software codes available for students and hobbyists. Complete instructions on DIY electronic devices also available. These projects have been tested by EFY and are available with source codes. These are helpful with understanding concepts of electronics including basic components. The projects are designed to be helpful for engineering students and professionals building their own designs and circuits. The projects are also compiled from time to time to provide a single destination for project junkies. Let us know how you feel about the content and any thing you would like us to cover in the future. We hope you enjoy the content on this page!

AC-Powered Led Lamps Without rectifiers

Usually, LED lamps require rectifier when connected to the AC mains power supply. Electrical isolation of the LED lamps from the mains is also...

Bedwetting Alarm

Bedwetting is one of the most common childhood problems that can have a significant impact on a child’s health if left unattended. During the...

Implementation of FIR Filters Using Rectangular Window

Filters are an important part of electronic circuits today. Whether it is the analogue or digital world, the role of filters is very important....

Dummy Load for Amplifier Testing

If you want to test an audio amplifier, here is a compact fan-cooled dummy load that can be used to provide any of the...

How Haptics Can Help Your Project

Fundamentally, haptics is any form of non-verbal communication involving touch. Shaking hands when you greet someone is a haptic custom originated from western countries....

JavaScript-based Multiformat Sudoku Puzzle Solver

Sudoku is a mathematical-cum-logical puzzle where every digit should come uniquely in every row and column without repetition. We generally find Sudoku puzzles in...

Designing Cutting-Edge Wearable Medical Devices

FEBRUARY 2012: As healthcare moves out of hospitals and becomes more integrated with peoples’ lives, medical devices are evolving from portable equipment to wearable...

How SoMs Take The Effort Out of Designing

 “System-on-module is an extension of the concept of system-on-chip which lies between a full-up computer and a microcontroller in nature” ——Texas Instruments  “We wanted to...

All About Transferring Power Wirelessly

One of the biggest challenges before consumer electronics makers today is to increase the battery life of their devices on a single charge. As...

Multifunction Power Supply

Many embedded systems these days need +5V power supply with some special functions such as power-fail detection, zero-crossing signals for mains power supply and...

Wireless Sensor Network Simulation Using NetSim

IEEE 802.15.4-based wireless sensor networks (WSNs) have witnessed explosive growth in the recent past because of their position-independent sensing capabilities even in toxic and...

GSM-based Dot-Matrix Display

Nowadays, LED message displays are becoming very popular for transmitting information to large groups of people quickly. These can be used indoors or outdoors,...

Challenges In Designing with International Certifications in Mind

Radiative immunity test. The Raspberry Pi is at the front right corner of the table. The video camera at the left is for monitoring...

Guide on how to select pressure regulators for fuel systems

A pressure regulator is a valve that automatically cuts off the flow of a liquid or gas at a certain pressure. Regulators are used...

Cable Tester

Have you ever wondered if a particular cable is delivering mains power supply to your device or not? Here is a solution that helps...

Eqntott: Truth Table Generator from Boolean Equations

This tutorial demonstrates the use of eqntott software with some code examples Shakthi Kannan eqntott (short for ‘equation to truth table’) is a software tool that...

Cupboard Light

Here is a simple circuit that can temporarily illuminate your cupboard or other such usually dark places where mains connection is either not possible...

Implementation of Fast Fourier Transform Using C++

Here is a program to compute fast Fourier transform (FFT) output using C++. FFTs are of great importance to a wide variety of applications including...
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