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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!

IoT Home Automation Using ESP-32 with Videos (Hindi & English)

Back in earlier days, when the word Internet of Things (IoT) was not a sound bite, developers of this field used various Wi-Fi shields...

Temperature Monitoring on Smartphone

This article describes a temperature monitoring system on an Android smartphone. Temperature is sensed by a temperature sensor installed in the circuit and is...

Wireless Security System Using PIR Sensors

This project demonstrates a wireless security system in which four pyroelectric infrared (PIR) motion sensors are placed in four sides—front, back, left and right—of...

Virtual Telepresence Robot Using Raspberry Pi

This robot with a camera is placed in a remote location to capture the environment in visual form using Raspberry Pi (RPi). The captured...

Doorbell with Security Feature

This doorbell Security system works such that when someone presses your calling bell switch during the night, not only the bell rings but the...

Audio Compression Using Wavelets In MATLAB

Audio frequencies range from 20Hz to 20kHz but these frequencies are not heard in the same way. Frequencies below 20Hz and above 20kHz are...

High-Frequency Issues In Electronics

This article covers some important issues in design of high-frequency electronic circuits and commonly followed practices to mitigate them. Electronic circuits behave very differently at...

Image Processing Based Fire Detection & Extinguisher System Using Arduino

This is an image processing based fire detection and extinguisher system using Arduino. It is basically the system is divided into two parts: Fire...

Build Your Own Digital Weighing Machine

This article guides you through building a budget-friendly digital kitchen scale that can measure up to 5 kilograms. It’s a simple design that's easy...

Teaching a Computer to Recognise Cats

Machine learning is a rapidly growing field which enables computers to learn patterns in the objects surrounding us. It is still a growing field...

Little Nightlight

Here we describe a very simple, economical and light-weight automatic nightlight that runs on 230V AC mains and can be used as a deluxe...

Door-Open Alarm

This door open alarm uses an input sensor fixed at the corner of the door frame and a magnet fixed on the door panel...

Battery-Powered Night Lamp Using an Old LED Bulb

This circuit utilises a low-cost 3W LED board to construct a battery-powered night lamp. This board consists of eight SMD2835 LEDs connected in series. Branded...

Power-Saving Relay Driver

In many circuits, the switching action is performed by a relay, which in turn activates an external load. The power consumed by the relay...

Designing Electro-Medical Equipment

Designing electronic medical devices requires engineers to walk an extra mile. After all, it’s the matter of saving lives! Since accuracy and reliability are...

Road Safety Solution for Drunken Driving

Drunken driving is one of the major problems today, this causes several deaths every year across the world. Here is a simple method of...

Window Charger

Keep away intruders with this compact electrified window charger. The charger produces non-lethal shocks that are strong enough to threaten intruders. Window Charger Circuit The circuit...

Weather Logger

Presented here is a personal weather logger whose various transducers are used to log weather data such as humidity, atmospheric pressure and temperature. The...
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