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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!

Control Robotic Car With Voice

This project describes the implementation of a voice-controlled robotic car using Arduino. In this project, the user gives specific voice commands to the robot through an Android app installed on the...
Distance Counter

Distance Counter

Presented here is a simple pedometer (Distance Counter) circuit. It measures the distance covered by you while walking. It may not work very well for running! Circuit and working Fig. 1 shows a...
Circuit diagram of digital tachometer

Build Non-Contact Type Digital Tachometer

A tachometer measures the rotation speed of motors and other machinery. There are various types of tachometers. Described here is a digital non-contact type tachometer using a proximity sensor. Circuit and working The...

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 algorithm. There are various biometric security methodologies including iris detection, voice, gesture and face recognition,...
PC based oscilloscope using Arduino

PC-based Oscilloscope Using Arduino

Oscilloscopes are an essential tool for electronics hobbyists and professionals to verify that their designs would work as expected. PC based Oscilloscope score over standalone oscilloscopes due to their compact size,...

RFID-Based Automatic Desktop/Mobile Phone Login Device (Hindi & English Video)

We have so many login passwords to remember in order to access our laptops, emails or online banking. And forgetting password is something that we often face, and when we are...

Speed Control Of DC Motor Using Pulse-Width Modulation

Pulse-width modulation (PWM) or duty-cycle variation methods are commonly used in speed control of DC motors. The duty cycle is defined as the percentage of digital ‘high’ to digital ‘low’ plus...
Graphical LCD Scope

Make This Simple Graphical LCD Scope

This scope reads input signal and displays the output waveform on a graphical liquid crystal display (GLCD) having 128×64-pixel resolution. The signal is fed to ADC pin of ATmega16 microcontroller (MCU)...

Force-Operated Toy Organ

This toy organ for children uses a readily-available force-sensitive resistor (FSR) and an NE555 timer IC. Resistance of the FSR varies with the amount of force or pressure being applied on...

Wireless LCD Display Via Bluetooth

This wireless LCD display shows information sent from a smartphone. The user can send text messages with up to 32 alphanumeric characters to the LCD within Bluetooth range of about 10...

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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...

Designing Android App For Communication With Bluetooth Module

This article is about designing an Android app for communication with HC-05 Bluetooth module using MIT App...

Real-Time Face Detection Using MATLAB

Object detection and tracking are important in many computer vision applications, including activity recognition, automotive safety and...

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