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Engineering Projects For You

Free engineering project ideas, circuit diagrams and software codes for students and hobbyists. Complete instructions on DIY electronic devices. EFY tested circuits with source codes.

Window Charger

Keep away intruders with this compact electrified window charger. The charger produces non-lethal shocks that are strong enough to threaten intruders. The circuit uses IC CD4047 as a free-running astable multivibrator. Capacitor...

MULTIBAND CW TRANSMITTER

A radio frequency oscillator is at the heart of all radio transmitters and receivers. It generates high frequency oscillations, which are known as carrier waves. Here’s a continuous wave (CW) transmitter...

Experimental Study of Switched-Capacitor Circuit

In recent years switched-capacitor circuits have gained popularity due to their suitability in integrated circuits. The two major problems faced by IC designers are: 1. Implementing a large-value resistor requires a large chip...

AUTOMATIC NIGHT LAMP WITH MORNING ALARM

This circuit automatically turns on a night lamp when bedroom light is switched off. The lamp remains ‘on’ until the light sensor senses daylight in the morning. A super-bright white LED...

Led Torch

LEDs are becoming increasingly popular in many lighting applications. White LEDs are now common in torches. Here’s a simple and economical LED torch that operates off two 1.5V cells. For a white...

Intercom with Musical Ringtone

Here’s a low-cost two-way intercom circuit with musical ringtone that can be made using readily available components (see Fig. 1).Melody generator IC UM66 (IC1) generates ringtone for the intercom circuit. The...

TOUCH DIMMER

By simply touching this touch dimmer you can increase the light intensity of incandescent lamps in three steps. The touch dimmer is built around 8-pin CMOS IC TT8486A/TT6061A specifically manufactured for...

Key Chain Light

A key chain with a built-in white LED comes in handy to help you at your front door or search your valuables in the dark. The intensity of white LED is...

Flashing Headlight for Mobikes

The dipper for a vehicle’s headlight changes the light from high beam to low beam or vice versa given a particular set of road conditions. The shifting of light from high...

Electrolytic Capacitor Tester

Using this electrolytic capacitor tester you can detect leaky and dead (open) electrolytic capacitors. It operates based on the time constant (T) of the capacitor when it is charged up to...

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LATEST SOFTWARE PROJECTS

Demo of 555 timer-based astable multivibrator using MATLAB

In analogue electronics, oscillators and their implementation using integrated circuits (ICs) is an important subject. As 555...

Electronic voting machine demo using MATLAB GUI

Electronic voting machines (EVMs) are used to conduct elections in India. These machines provide straightforward and effortless...

Basics of Computer Programming

computer programming basics
Digital computers have enhanced human capability in major walks of life and are still penetrating to diverse...

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