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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!
3 – Step Authentication With Face Recognition Smart Lock For Car
At some point, we all must have have come across news of car theft, be it in the television/newspaper or in the neighborhood. It...
Build Your Own Low-Noise 48V Regulated Power Supply
Here is a low-ripple and low-noise 48V regulated phantom power supply for an audio preamplifier and driver. Such power supplies require well-filtered, low-ripple and...
Noise Detector with Automatic Recording System Using Arduino With The IoT
Noise pollution is a growing problem in modern cities, thanks to rapid population growth, urbanisation and new technologies. Moreover, at times, a noisy neighbour...
Smart Wearable Device For Distress Calls
We all know how it feels to be stuck in a helpless situation and the stress it causes. Imagine being encountered by a dangerous...
RTC Automatic Electronic Ring Bell
“Ting-Ting-Ting” - We are all familiar with that sound of school bell which rang before morning assembly, lunch break and at the end of...
Simulate Smartphone Screen Lock/Unlock Application
An Android phone allows itself to be locked/unlocked using a password, pattern on a grid of nine dots, fingerprint or facial recognition. An Android...
Build A Filter and Polarity Guard for AC/DC Adaptors
Presented here is a simple filtering and polarity reverse protection guard for AC/DC power adaptors. Wall adaptors have many advantages because these are low-cost,...
Control Four Appliances with a Touch Switch Panel
This project is based on a capacitive touch sensor for controlling four electrical appliances. Toggle switches have been used for operating lights or fans,...
HVDC Power Supply Design
Circuits like Geiger counters, insect zappers, Nixie tubes and sensors require high-voltage direct-current (HVDC) supplies. There are various types of HVDC power supply designs...
Protect Yourself With This Noise Level Monitor
Presented here is an Arduino-based noise/sound level monitor that displays sound levels in decibels (dB) and corresponding voltage levels on an LCD. A noise...
New Facial Recognition Smart Glasses For Visually Challenged Person
In this project, we will be making a prototype of a smart eyeglass that can help a visually challenged person to recognize the person...
Make This Simple Tester For Operational Amplifiers
This is a simple tester with square-wave oscillator for single and dual operational amplifiers (op-amps). These op-amps are widely used in different projects. You...
Automatic Ambient Light System With IoT Home Automation
Wouldn’t it be amazing if our room light automatically adjusts its brightness according to our needs? Or if we can control the brightness of...
Stop Tank Overflow With This Wireless Water-Level Indicator-Cum-Controller
Simple Overflow Stopper For Water Tanks
Water Level Indicator Circuit (LED based)
Water Level Indicator using 7-Segment Display
Water Tank...
Greater Functionality Demands Higher Levels of Technology
Companies are trying to maintain their competitive edge by adding more functionality to their products. This is making systems that were previously relatively simple...
Hacking Bluetooth Headset To Control A Robot
In this project, an old Bluetooth headset can be used, along with a cellphone to make a robot controller, without a microcontroller (MCU) or...
Smart Receptionist With Smartlock System
Presented here is a security system that lets you see a visitor while your main office door is locked. If you are in...
Monitor Light Level In Underground Mines And Caves
This circuit monitors light in surrounding areas at all times, displays light level on the LCD and sounds an alarm when light level becomes...