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Home Engineering Projects For You

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!

Simulate Smartphone Screen Lock/Unlock Application

An Android phone allows itself to be locked/unlocked using a password, pattern on a grid of nine dots, fingerprint or facial recognition. An Android phone using a password needs a sequence...
humidity sensor

Humidity Sensor: Basics, Usage, Parameters and Applications

Sometimes, after rains, the air feels moist. The water seems to have suspended in the air. However, in certain AC’s you click some buttons and the atmosphere brightens up. How and...

Monitor Devices Through Web Browser

The Internet of Things (IoT) is being widely used in industrial and commercial applications. This article describes how to monitor things or devices connected to WeMos D1 board, which acts as...

Build A Filter and Polarity Guard for AC/DC Adaptors

Presented here is a simple filtering and polarity reverse protection guard for AC/DC power adaptors. Wall adaptors have many advantages because these are low-cost, have a wide range of output voltages...

Control Four Appliances with a Touch Switch Panel

This project is based on a capacitive touch sensor for controlling four electrical appliances. Toggle switches have been used for operating lights or fans, and momentary press switches for operating electric...
HVDC Power Supply Design prototype

HVDC Power Supply Design

Circuits like Geiger counters, insect zappers, Nixie tubes and sensors require high-voltage direct-current (HVDC) supplies. There are various types of HVDC power supply designs available in the market, including voltage doubler...

Protect Yourself With This Noise Level Monitor

Presented here is an Arduino-based noise/sound level monitor that displays sound levels in decibels (dB) and corresponding voltage levels on an LCD. A noise monitoring system is used in many applications...
Smart Glasses With Facial Recognition

New Facial Recognition Smart Glasses For Visually Challenged Person

In this project, we will be making a prototype of a smart eyeglass that can help a visually challenged person to recognize the person in front of him and learn about obstacles...
Circuit diagram of the simple Tester For Operational Amplifiers

Make This Simple Tester For Operational Amplifiers

This is a simple tester with square-wave oscillator for single and dual operational amplifiers (op-amps). These op-amps are widely used in different projects. You can use and reuse these, but an...

Automatic PID Controlled Ambient Light System With IOT Home Automation

Wouldn’t it be amazing if our room light automatically adjusts its brightness according to our need? Or if we can control the brightness of LED lights from our phone? This would not only...

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Simulate Smartphone Screen Lock/Unlock Application

An Android phone allows itself to be locked/unlocked using a password, pattern on a grid of nine...

Creating Game Using Python Within Ten Minutes

Game using Python
Have you ever wondered how video games are created? It is not as complicated as you might...

Real-Time Face Detection and Recognition for Security Purposes

This article demonstrates real-time training, detection and recognition of a human face with OpenCV using the Eigenface...

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