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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!

Wireless Caller ID

Wireless Caller ID Display for Bikers

This simple telephone caller identification display can be very useful for bikers. While riding a bike or any two-wheeler, the cellphone is usually kept in a pocket. When you receive a...

Stop Clock With Battery Backup

Stop clock is widely used in various fields to measure the timing of events. Science laboratory experiments, such as measurement of discharge rate of capacitors with different resistors, acceleration due to...
midget vibration detector circuit

Midget Vibration Detector

This article describes a low-cost sensitive midget vibration detector that can interface directly with any microcontroller. The entire circuit operates off a single 5 volt supply. Probably there is no need...

Difference Counter for In and Out Gates

Sometimes, we need to know whether someone is still inside a building before it is locked. And if so, how many persons are still inside? There can be many other similar...

Remote Phone-Bell Ringer

Did you ever miss an important telephone call simply because you were away where you couldn't hear the phone ringing? This should not happen again with this inexpensive remote telephone bell....

Industrial Digital Thermometer

Presented here is a 4-digit Industrial Digital thermometer based on ATmega16 microcontroller (MCU), which can measure temperature up to 1024°C. Normal thermometers have a limited range, and can easily get damaged at...

Dual-Tone Horn

This circuit generates two different frequencies and mixes these to produce a balanced ringing tone, which can be used in burglar alarms or call bells. The circuit uses a dual-timer IC LM556...
water pump dry run guard circuit

Water Pump Dry Run Guard

Presented here is a water pump dry run guard that works as an effective solution for protection of household submersible water pumps against dry running. Minimum water-level monitoring feature in the...

5V DC To 48V DC Converter For Phantom Power Supplies

This circuit presents a simple and low-cost DC-to-DC converter for phantom power supplies used in mixing consoles, microphone preamplifiers, telephone systems and similar equipment. There are many application circuits that require...
Electrolytic Capacitor Tester

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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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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