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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!
Image Processing Using MATLAB: Spatial Filtering (Part 3 of 4)
Read Part 2
Spatial filtering techniques refer to those operations where the resulting value of a pixel at a given coordinate is a function of...
Bi-Directional Motor Driver Using ULN2803
Motor driver modules for motors allow you to control the working speed and direction of two motors simultaneously. Here we present an alternative ULN2803...
Mobile Charger with a 9V Battery
We face a lot of problems everyday to charge our mobile phone batteries. Here is a simple and effective way to charge your mobile...
Home Security System Using ESP8266
When you were outside of your home, no one was there to protect your home. There are lots of burglary, theft occurs. There are...
Optical Theremin Musical Instrument Using Arduino Uno Board
Theremin is an early electronic musical instrument controlled without physical contact by the thereminist (performer). It is named after the Russian inventor, Léon Theremin,...
Multimeter Test Leads from Scratch
If you are an electronics hobbyist and need to measure low currents and low voltages, you can buy any inexpensive multimeter. However, test leads...
Designing Wireless Gas Detection and Monitoring Systems
Prof Dr Dogan Ibrahim of the Near East University in Cyprus describes the basic principles of gas sensors and shows how a wireless gas...
Touch Switch
Described here a touch switch circuit system that operates only when you touch two conductor terminals simultaneously with your fingertip.
How Output Technologies are Changing for the Better
3D printers are penetrating into the market, enabling rapid prototyping of realistic 3D models. Ever wondered how these printers are designed? In an era...
Curtain Opener
Open or close the curtains of your house at the press of a switch. All you need is this electronic curtain opener. Meant for...
Wireless Equipment Control Using MATLAB-Based GUI
In process instrumentation and control, operators in the plant equipment control room monitor on-field sensors and send real-time commands to control actuators and final...
Image Processing using MATLAB: Basic operations (Part 2 of 4)
Read part 1
Image processing covers a wide and diverse array of techniques and algorithms. Fundamental processes underlying these techniques include sharpening, noise removal, deblurring,...
Making PCBs at Home Photographically (Part 2 of 2)
Part 1 of this article in previous issue explained the creation of schematic and PCB layout. This part covers the remaining steps for making...
Want to Build Your Own Self-Balancing Robot?
Do a Google search on "build your own robot" and you'll find a treasure trove of kits, articles, and videos. Have you ever wanted...
Touch Switch Panel
How many times do we use an electric switch in a day? So often that it has become secondary nature and no one keeps...
Models of a Linear Feedback Shift Register using ModelSim
Presented here is a linear-feedback shift register (LFSR) using Verilog that is designed and simulated using ModelSim testbench. Register-transfer level (RTL) models are quite...
Programming Challenges and Solutions for Non-volatile Memory
Persistence or data storage is a very important aspect for any enterprise or consumer software. However, in terms of speed or latency, the persistent...
Arduino-based Front Office Visitor Alarm
This Arduino based visitor alarm is useful for offices, clinics and shops. It alerts you to the entry of a visitor by producing a...