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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!

Simple 5W Mono Audio Amplifier

This mono AF amplifier uses a single 5-pin LA4425A IC to deliver 5-watt output through a 4-ohm, 5-watt loudspeaker. The datasheet of LA4425A recommends a 13.2V power supply to get 5-watt...
smart robot

Smart Robot For Face Recognition

This article describes how you can design a smart robot that can recognise your face and of other regular visitors. If the robot recognises correctly, it will greet and call out...

On/Off Remote Control For Two Appliances

This project will enable remote control of two electrical appliances. It makes use of a TV or DVD remote that uses modulated infrared (IR) pulse train operating at 38kHz frequency. A good...

IoT Mesh Network Agriculture System

Watering various herbs, shrubs, crops and indoor decor plants at the right time with the right amount of water is essential for their productivity and growth, though care needs to be...
Shortwave Transmitter

Crystal-Controlled Shortwave Transmitter

A shortwave transmitter can be built with IC CD4049, which is used as an oscillator and a buffer amplifier. The transmitter can be crystal controlled to work at a frequency of...
Bluetooth Internet Gateways

Understanding Bluetooth Internet Gateways For IoT Solutions

Based on some work carried out by the Bluetooth SIG relating to the integration of Bluetooth devices with the Internet and IoT architecture, here are some interesting results. According to the research...

Arduino Album That Shows Photographs One By One Automatically

Normally, we keep the photographs we take in a photo album to view or show to our friends or family later. This Arduino album can display those digital photographs one by...

ESP8266 IoT Energy Monitor and Over Current Cut-off

Sockets, boards and wires generally receive a limited supply of electric current. Any 'current overdraw' from them via thin wiring can result in a short circuit. Therefore, real-time power usage monitoring...

Smart Glass That Can Read Books

We have seen many smart glasses to detect the distance between objects or help visually challenged persons to recognise people’s faces. Here we extend it to the next level using optical...

Control Any TV Using Alexa

One of the impressive characteristics of a smart home is that all electronic appliances can autonomously operate, making them smart. This means that television (TV) can also become smart and be...
 
 
 

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