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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!
Auto-reversible DC Motor with Speed and Rotation Control
DC motors are widely used in different machines, mechanisms and motion controls in manufacturing and processing industries. In these machines, it is often required...
Ethernet Interface for Automation Systems
Communication with remotely located automation systems is possible via the Internet. A physical communication port with a network is required for this communication. An...
Computerized Universal Timer
This simple and flexible timer is more accurate than the real-time clock of the computer used for the purpose. It can be used in...
Periodically On-Off Mosquito Repellent
Some of the mosquito repellent available in the market use a toxic liquid to generate poisonous vapours in order to repel mosquitoes out of...
Material and Design Come Together To Forge Reliable PCBs
As we moved towards touchscreen phones with ultra-smart features, we also reduced the lifetime of our mobile phones. A case that comes to mind...
Water-level Controller
In most houses, water is first stored in an underground tank (UGT) and from there it is pumped up to the overhead tank (OHT)...
3W/6W audio amplifier using TDA2003
This is a simple audio-frequency (AF) amplifier using the popular audio amplifier IC TDA2003. The IC comes in a 5-pin TO-220B package.
Audio amplifier circuit...
Duck Hunt Game Using Arduino And Python
Duck hunt game is a shooting game based on pygame, using Arduino and an accelerometer sensor. In this project a gun pointer is made...
Sunset Lamp
LDR-based automatic lights flicker due to the change in light intensity at dawn and dusk. So compact fluorescent lamps (CFLs) are unsuitable in such...
Automatic School Bell
Consider that a school has a total of eight periods with a lunch break after the fourth period. Each period is 45 minutes long,...
Water Level Controller-Cum-Motor Protector
Many a time we forget to switch off the motor pushing water into the overhead tank (OHT) in our households. As a result, water...
Smart Emergency Light
An emergency light can come in handy at all sorts of time, especially when there's a power outage. Now you need not fear dark...
Long Range FM Transmitter
Several circuits for constructing FM transmitter have been published in EFY. The power output of most of these circuits were very low because no...
PC Based Timer
Timers are very useful both for industrial applications and household appliances. Here is a PC based timer that can be used for controlling the...
Numeric Water Level Indicator
Most water level indicators for water tanks are based on the number of LEDs that glow to indicate the corresponding level of water in...
Secured Room Access System
Security is a prime concern in our day-to-day life. And access control system forms a vital link in a security chain. The microcontroller based...
Cellphone Operated Land Rover
Conventionally, wireless-controlled robots use RF circuits,which have the drawbacks of limited working range, limited frequency range and limited control. Use of a mobile phone...
Pressure Sensors on Railway Tracks
Every year, thousands of animals die after being hit by trains. Animals on train tracks are dangerous for both animals and the train as...