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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!
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...
Simple Antenna Preamplifier for AM Radios
AM radios are still used for capturing transmissions from long distances (DX reception). But AM radios normally require long (10-30m) outdoor antennae. That is...
Power Measurement and Control Using Programmable Logic
In a complex system design, power consumption of hardware components is a very important performance metric because of the resulting thermal and reliability concerns....
Part 2 of 3: Using AVR Microcontroller for Projects
In the first part of this article, we had described the main features of the AVR microcontroller and the hardware/software required for an AT-PROG...
How to Design Medical Devices for Rural India
Medical devices intended for use in rural India have certain differences compared to those used almost everywhere else. In this article, we consider the...
Soldering Iron Tip preserver
Although 60/40 solders melt at about 200°C, the tip temperature of a soldering iron should be about 370°C. This is necessary to make a...
Standalone GPS Receiver with LCD Display
This AVR microcontroller-based global positioning system (GPS) receiver can be used to find the exact location of a place and know its standard time....