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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!
Build Your Own Miniature VAW Meter
The circuit presented here can measure voltage (V), current (A) and wattage (W) on an OLED. It is actually voltmeter, ammeter and wattmeter circuits...
Automatic Power-Resumption Alarm
Most power-resumption alarm devices produce non-stop alarm when power resumes. To overcome this problem, here is an automatic Power-Resumption alarm circuit that sounds an alarm...
Web-Based Device Controller With Arduino Board
Arduino board can also be used to control electrical devices and appliances over the Internet. Just by clicking a few buttons on a webpage,...
Microcontroller-Based Morse Code Encoder
Morse code is a method of transmitting textual information as a series of on-off tones, lights or clicks that can be directly understood by...
IoT-Based Smart Agriculture System
Most of us have a small garden, farmland or a plantation area. Our busy schedule, however, doesn’t allow us to maintain it well. But...
Make This Solid-State Relay Driver for Microcontroller
Here is a simple solid-state relay (SSR) driver circuit using a transistor. An SSR is similar in operation to a traditional electromagnetic relay with...
RFID And Face Recognition-Based Smart Attendance System
Every organisation needs an attendance system to obtain data about its working hours and also keep track of its employee’s punch in and out...
Develop a Smart Android App for Temperature Alert System
This project presents an Android app to generate an alert (alarm) on a smartphone when temperature of the process under consideration exceeds user-defined maximum...
Simulate MOSFET-Based Ideal Diode
A simple explanation for the working of an ideal diode circuit based on P-channel MOSFET and PNP transistor is presented here. The typical voltage...
Build A Model Of Satellite Dish Antenna Angle Controller
Presented here is an Arduino-based dish antenna angle controller to align the position of a satellite dish antenna by setting azimuth and elevation angles....
Gesture Controlled Wheelchair Using ATmega32
Wheelchairs are useful for people for whom walking is difficult or impossible due to some illness, injury or disability. There are different types of...
IR Remote-Controlled RGB Bulb
Infrared (IR) remote-controlled RGB bulbs available in the market are extremely expensive. Here is a simple, easy-to-build and inexpensive circuit built using Arduino Uno...
Mini Fridge With Peltier Modules
It was in the middle of 1821 when J.T. Seebeck discovered that if two dissimilar metals connected at two different points are held at...
Decode An IR Remote For Home Automation
This article describes how to decode a remote controller and use it for home automation, along with Arduino. An infrared (IR) remote controller used...
Portable Digital Weighing Machine Upto 100kg
You must have seen a digital weighing machine in numerous shops, but have you ever wondered how it works and how it can be...
Smart Digital Calendar That Tells You Live News From EFY
We all must have used a photo frame in our houses, but have you ever wondered that you can make a smart digital photo...
Alarm Clock Radio Using Arduino
This project describes how to make the alarm clock radio in Arduino. The main feature of this project is that it will display date,...
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...