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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!

RTL-Software Defined Radio and Android setup

Software-Defined Radio with Android Smartphones

Software-defined radio (SDR) is one of the most important wireless communication technologies. It is a unique type of radio system that can tune to any frequency band. The SDR platform is...

GSM-based Cellular IoT Home Automation

What if you are out of your home (and/or in another country) and suddenly realise that you have forgotten to turn off the geyser, lights and other electrical appliances? This costly...

Make Your Own FM Transmitter For Broadcasting

This is one of the simplest FM transmitters that can be built. It does not require any tuning, and transmit frequency is crystal locked to 90MHz. It eliminates frequency drift common...

Automatic Anchor Light

Federal and international regulations require boats to carry lights between sunset and sunrise and during conditions of restricted visibility. The number and colours of the lights vary with the size of...

AC Lamp Blinker Using Timer 555

There are at least two popular applications of blinking a string of 110V/230V AC incandescent lamps. The first is audio-visual warning at construction sites or where repairing is going on. The...
Output of Temperature monitoring System through Bluetooth terminal on smartphone

Make A Battery-Operated Portable Temperature Measurement System

This project presents a K-type thermocouple-based temperature measurement system using MSP430G2553 microcontroller (MCU). The MCU reads sensor data and updates it on a four-digit, seven-segment display, and also sends it to...

Convert 12V DC To 9V DC Using IC LM2576

You may already have on hand a 12V AC/DC adaptor or 12V from your PC or 12V battery, but you need a 9V, 2.5A DC power supply for your embedded system....

DIY: 3D Scanner Using Just Arduino And Android Phone

The entire project is completely automated and available as open-source Thanks to advanced computational methods, 3D scanning can be used to create real-life, three-dimensional computer models of almost any object. To do...
Circuit diagram of automatic water refiller for air-coolers

Automatic Water Refiller for Air-Coolers

Air-coolers provide cool air in a room by adding moisture to the air. This moist air is blown inside the room by an exhaust fan or blower, which makes the room...

Use MQTT Protocol In Smartphones And Raspberry Pi

The article demonstrates the use of Message Queuing Telemetry Transport (MQTT) protocol in smartphones and Raspberry Pi. MQTT, a machine-to-machine Internet of Things (IoT) protocol, is useful for connecting with a remote...

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Image Compression Using Discrete Cosine Transform Technique

Compression process in mobile using WhatsApp
Presented here is a MATLAB-based program for image compression using discrete cosine transform technique. It works for...

Analysis of Transformer Inrush Current Using Java

nrush current analysis graph
Power transformers are essential part of a power system network. A transformer is used at the transmission...

Create A GUI Program For Raspberry Pi And Arduino

This article describes the procedure to set up Arduino as a slave device, which gets all control...

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