HomeEngineering 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!
MOVIE MAKER
Like real movies, this circuit makes use of a characteristic of the human eye and brain known as the persistence of vision. A sequence...
MOTOR CONTROL THROUGH PWM
Motion control plays a vital role in industrial automation. It is required in manufacturing plants of industries like chemical, pharmaceutical, plastic and textile. And...
Call Bell With Welcome Indication
Here is a simple call bell circuit that displays a welcome message when somebody presses the call bell switch momentarily. The alphanumeric display can...
CASH BOX GUARD
Most thefts happen after midnight when people enter the second phase of sleep called 'paradoxical sleep.' Here is a smart security circuit for your...
Photovoltaic Battery Charge Controller
A charge controller is one of the main components of a solar battery charging system (Fig. 1). Its main function is to fully charge...
GUITAR EFFECT PEDAL POWER
A friend of mine plays guitar with several guitar effect pedals. He had a problem with battery eliminators and cables of the pedals cluttering...
FLASHER FOR DEEPAWALI
Here is the circuit for a portable electric lamp-cum-LED flasher. It uses a 25W, 230V AC bulb and nine LEDs. When the bulb glows...
ELECTRONIC METRONOME
A metronome is used by musicians for practice in maintaining a consistent tempo, or rubato, around a fixed beat. This circuit produces a regular...
Keep Away NI-CD From Memory Effect
Ni-Cd batteries suffer from an undesirable memory effect due to partial discharge. The remedy is to completely discharge the battery before recharging.
A simple resistor...
Timer From Old Quartz Clock
You can build an accurate, low-cost timer from the circuit of an old quartz clock. This timer has a time duration of up to...
IR-Controlled Water Supply
This circuit can be used in homes or small restaurants for any type of water supply unit, such as toilet flush or washbasin tap.
The...
ELECTRIC GUITAR PREAMPLIFIER
Here is the circuit of a guitar preamplifier that would accept any standard guitar pickup. It is also versatile in that it has two...
Simple Key-Hole Lighting Device
When opening the door of your room in the dark, you may have to spend a few minutes searching for the key-hole. Here is...
Halogen lamp Saver For Bikes
Halogen lamps are prone to burn-out owing to their low cold current. The rapid heating inside the lamp melts the thin filament and cuts...
MOBILE ELECTRONIC WORKBENCH
Typically, implementing and testing even a small circuit requires an elaborate setup that includes breadboards, a dual DC power supply, hookup wires, ICs and...
Sequential Device Control using TV Remote Control
This circuit lets you switch on and switch off up to nine devices sequentially from your TV remote control.
The circuit consists of an IR...
WEEKLY REMINDER
This circuit reminds you of all the important tasks that are due on a specific day every week. So be it returning your library...
Standby Power-Loss Preventer
Electronic devices consume some power even in the standby mode, i.e., when they have been switched off using a remote handset but not the...