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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!
Emergency Photo Lamp
This emergency photo lamp can be powered either by a rechargeable battery (like 3.6V Ni-Cd) or a non-rechargeable battery (3.0V CR2032). The white LED...
Making PCBs at Home Photographically (Part 1 of 2)
Here is a comprehensive guide to making your own PCBs at home using materials that are readily available in shops and online stores. While it addresses single-sided PCBs, it can be extended to create double-sided PCBs as well.
Single-Wire 4×4 Matrix Keypad Using AVR
This tutorial demonstrates a different way of interfacing a 4x4 matrix keypad with ATmega32 AVR microcontroller. Keypad is one of the most important input...
How to Play With Light Using LDR
In electronics, there are many ways to play with light the way you dream. If you are looking for an inexpensive solution, regular light-dependent...
Pmods – How To Get Started?
Here's a beginner's guide showcasing Pmod compatibility with the popular Arduino Uno platform. We will use a sample project - Pmod NAV - described...
Make Your Own Joystick for RF Controlled Robot
In the DPDT (double pole double throw) based joystick or the RF transmitter module switch based joystick, you must press two buttons simultaneously for...
Triple Power Supply From USB
Nowadays, most portable electronic gadgets are powered by USB adaptors. These adaptors have 5V, 1A to 5V, 2.1A output, which is enough to power...
Ruggedise the Hardware: Increase Its Life
McLaren-Honda, manufacturer of premium electric racing cars, recently started using silicon-carbide (SiC) power devices in inverters and on-board chargers, which increased their efficiency by...
Add-on USB Power Circuit For UPS
Most computer UPS have only 230V output and no USB output. Presented here is a USB power circuit that gives 5V USB output using...
Connected Message Lamps using ESP8266 | IoT Projects
It is not just another Engraved LED lamp that you see on the market nowadays. This is an advanced version of that lamps. In...
Smart Power Plug
We are becoming more conscious for Energy consumption these days and want to know the energy consumed by home appliances in addition to the...
Solid State Voltage Stabiliser
In India, we have a large power distribution system with heavy distribution losses and variations in industrial/ domestic load. This results in voltage variations...
Car Stereo Player Circuit
Using a mobile phone while driving is dangerous. It is also against the law. However, you can use your mobile phone as a powerful...
1-30 Minute Timer
Using this 30 minute timer circuit you can switch on an appliance for a desired time. The circuit provides selectable time settings of 1,...
Car Fan Speed Controller
Using this fan speed controller circuit you can control the speed of 12V DC fans used in cars. The circuit is built around timer...
How To Build A Quadcopter?
Quadcopters are becoming more widespread because they are incredibly stable, fast and fun to fly. Newer technologies have allowed development of smaller and cheaper...
Mini UPS System
This mini ups circuit provides an uninterrupted power supply (UPS) to operate 12V, 9V and 5V DC-powered instruments at up to 1A current. The...
Duophone: Multiple Numbers Through One Telephone
This simple circuit of a duophone allows you to access two telephone lines through one telephone set. Each telephone conversation will remain entirely separate...