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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!
LME49710 Based Audio Amplifier
Listening to music on a self-made system is great. Good-quality audio amplifier circuits can be constructed with minimum components. Described here is an LME49710...
Dimming LCD Backlight
Presented here is a power-saving LCD backlight control circuit. An LCD is used in many projects for indication or information display since it consumes less...
Fastest Finger First Indicator
Quiz-type game shows are increasingly becoming popular on television these days. In such games, fastest finger first indicators (FFFIs) are used to test the...
GSM Based Messaging Using Arduino
Today, GSM networks are widely-used, whether for making calls or sending SMSes. But some places need urgent messages like in colleges, railway stations, events,...
Gas Leakage Alarm
LPG gas is supplied in pressurised steel cylinders. As this gas is heavier than air, when it leaks from a cylinder it flows along...
Real-Time Multiple Colour Tracking
This project uses the fundamentals of computer vision to track three different colours: red, blue and yellow. When you run this program, a camera...
Electronics Projects: Simple Line-Following Robot
Generally, line follower robot is microcontroller-based. Here we describe a line follower robot without microcontroller for those who are not familiar with microcontrollers. It...
Universal Power Supply
Linear regulators like LM317, LM337, 78xx and 79xx, Zener diodes (1.3W) and reference diodes (e.g., LM336) are quite inexpensive and widely available. So you...
Visitor Counter
Presented here is a simple counter circuit that counts the number of visitors entering or exiting an auditorium or any other place where you...
Stress Meter | Circuit Diagram With Full Explanation
This stress monitor lets you assess your emotional pain. If the stress is very high, it gives visual indication through a light-emitting diode (LED) display along with a warning beep. The gadget is small enough to be worn around the wrist.
Simple Low-Cost Visitors Counter
Here is a simple and inexpensive visitor counter circuit that you can build easily. Visitor counters available in the market are generally expensive and...
Portable Crystal Tester
A crystal tester is an indispensable tool. Most electronics projects working with high-frequency equipment utilise crystals to generate frequency for an oscillator. Using this...
Network Troubleshoot Using Packet Sniffer Wireshark
In industries, many systems are based on networks comprising different devices and controllers that work on some protocols. Often the need arises to monitor...
MATLAB Based Graphical User Interface For Digital Image Watermarking
A digital watermark is a kind of mark or image that is embedded in a multimedia carrier and can be used to verify the...
Low-Cost Quadraphonic Amplifier
Here is a circuit for a simple but useful low-cost quadraphonic (having four channels) amplifier. It can be used for experiments in open or...
DIY: Arduino Chatting
Networking is the one of the most important mean of communication used to communicate with people who are connected to one. Most of the...
A Guide To Model Rocketry
Model rocketry is an interesting hobby. To have a safe and predictable flight, rocketeers must have keen interest and some experience in the field....
Auto Switch-off Staircase Light
In areas like staircase or porch of your home, lighting is required only for a short period of time at night. We often forget...