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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!
Voice Recorder and Playback System
There are several types of voice recorder and playback systems available in the market but most of them are expensive and their circuits are...
Low Power Voltage Doubler
All miniature electronic devices operate off batteries. Some of them need higher than the standard battery voltages to operate efficiently. If the battery of...
Top 19 Arduino Projects To Build In Your Free Time
We compiled a list of 19 Arduino projects that would be cool to design. If you have an Arduino lying around or are planning...
IR Remote Designs For Home Appliances!
With readily available and inexpensive Infrared emitters and detectors, Infrared (IR) remotes are quite common in almost all home appliances like televisions, CD/DVD players,...
Development Boards DIY and Hobbyists Application
There is no dearth of electronic hobbyists around the globe. There are many expert hobbyists working beyond the scope of imagination, increasing the demand...
Wireless Doorbell
Installing a doorbell in an existing building is a difficult task as it involves wiring that can look shabby if not concealed properly. Presented...
LED As Light Sensor
Usually light dependent resistors (LDR) and photodiodes are used as light sensors to activate or deactivate circuits based on the presence or absence of...
From Lightweight Ceramic Heat Sinks To Interface Solutions For Heat Dissipation
While going through electronics product reviews, you might have come across phrases like, “The phone heats up on intensive gaming” or “The device feels...
Cistern Overflow Alert System
The overflow alert system presented here will electronically monitor cistern (tank that holds water to flush the toilet) overflows that can otherwise cause seepage...
School/College Quiz Buzzer
Manual buzzers used for quiz competitions in schools and colleges create a lot of confusion in identifying the first respondent. Although there are circuits...
Electromagnetic Compatibility: Cable Selection And Routing
To read the previous part of this article: click here
It is frequently observed, and more so with those who design and manufacture electronic control...
Wireless Video Surveillance Robot using Raspberry Pi
This project builds a Video Surveillance robot that can be controlled via wireless remote control and can be used for video surveillance also.
Video surveillance...
SMS Alert System
We receive many SMS alerts every day. These are automated messages that are broadcast to a list of mobile numbers. Ever wondered how the...
IoT Based Smart Camera Using Android And Raspberry Pi
Presented here is a project that lets your Raspberry Pi (RPi) turn into an IoT based smart camera and then control and watch live...
81 LED Chaser Light Using CD4017
This is a simple CD4017 based LED light using NE555 timer for clock generation. We have used only two CD4017 ICs to construct the...
Implementing High-Security Remote Control Systems
In remote-control operated systems, security is always a concern. The system must be designed to prevent unauthorised access. Special software and encryption are used...
Infrared Object Counter
This infrared object counter can be installed at the entry gate to count the total number of people entering any venue. For example, it...
Over/Under Voltage Protection of Electrical Appliances
Presented here is an under/over-voltage protection circuit that protects refrigerators as well as other appliances from under & over-voltage. Operational amplifier IC LM324 (IC2)...