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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!
PC Based Candle Igniter
Here’s a PC based candle igniter system that lets you light up a candle using matchsticks by just pressing the ‘Enter’ key on the...
Flashing Headlight for Motor bikes
The dipper for a vehicle’s headlight changes the light from high beam to low beam or vice versa given a particular set of road...
Car Fault Indicator Alarm
Here’s a car fault indicator alarm circuit that sounds an alarm if your turn indicator lamps doesn’t glow, helping you to safeguard against any accident...
Electrolytic Capacitor Tester
Using this electrolytic capacitor tester you can detect leaky and dead (open) electrolytic capacitors. It operates based on the time constant (T) of the...
Mains Box Heat Monitor
This simple mains box heat monitor circuit monitors the mains distribution box constantly and sounds an alarm when it senses a high temperature due...
LED Torch
LEDs are becoming increasingly popular in many lighting applications. White LEDs are now common in torches. Here’s a simple and economical LED torch that...
Laser Based Transmitter And Receiver
Using this laser based transmitter & receiver circuit you can communicate with your neighbours wirelessly. Instead of RF signals, light from a laser torch...
Electronic Voting Machine Demo Program
Elections in India are conducted almost exclusively using electronic voting machines. These devices are praised for their simple design, ease of use and reliability....
Hit Switch Circuit
This versatile hit switch circuit is the electronic equivalent of a conventional switch. It can be used to control the switching of a variety...
Digital Mains Voltage Indicator
This is a circuit for a digital mains voltage indicator that displays main voltage in the form of a LED bar graph with 16 LEDs. The first LED indicates voltage level at 50 V and the 16th LED shows voltage level for 280 V.
Mobile Phone Multipower Unit
Most of the mobile phone complaints are related to the power supply. This is mainly because of improper charging and use of non-recommended chargers...
DC Motor Control Using Single Switch
This is a circuit that controls a DC motor to run it in clockwise, anti clockwise direction and to stop it using a single switch. It has three LEDs that indicate the status of motor; stopped, forward rotation and reverse rotation respectively.
Frequency Counter
A frequency counter measures the frequency of an input signal. These are commonly used in laboratories, factories and field environments to provide direct frequency...
Electronic Thermostat For Fridge
An electronic thermostat is a standard equipment for sensing the temperature of a system and maintaining it at a pre-defined point. It is a...
Simple Touch Sensitive Switch
A touch switch is a type of switch that only has to be touched by an object to operate. It is used in many...
Infrared Motion Sensing Relay Switch
This IR motion sensor relay switch circuit is designed for use with all kinds of medium-power automobile/domestic 12V DC loads...
Infrared Remote Control Timer
Presented here is a infrared remote controlled timer circuit. The circuit comprises two sections, namely, the transmitter section and the receiver section. Fig. 1...
Simple Video Amplifier
There are times when you want to view the video clips taken by your camera on your TV. You can do so by interfacing...