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!
Smart Switch
To switch on the mains voltage, either a mechanical switch or a relay offers a simple solution. However, the relay and its associated components...
Transistor Tester
With this transistor tester, you can test both npn and pnp transistors using this circuit. The circuit indicates whether the transistor is good, open...
Portable Lamp Flasher
Here is a high power incandescent electric portable lamp flasher. It is basically a dual flasher (alternating blinker) that can handle two separate 230V...
Overspeed Indicator
This speed indicator circuit is designed for indicating over-speed and direction of rotation of the motor used in mini hand tools, water pump motors,...
220V Live Wire Scanner
Presented here is a 220V live wire scanner. The clock input of the IC is connected to a wire, which acts as the sensor....
Telephone Conversation Recorder
This is a circuit for a telephone conversation recorder that can record conversations over the telephone in a tape recorder...
Automatic Dual Output Display
This circuit lights up ten bulbs sequentially, first in a direction from first bulb to last bulb and then in a reverse direction.
Light Dimmer that Doubles as Voltmeter
Measure AC mains voltage without using a multimeter. All you need to do is to slightly modify the light dimmer fitted at the base...
Reaction Time Game
This reaction time game tests the time taken by two players to react, and declare the fastest one as a winner. To do this...
FPGAs in Data Centres: Opportunities and Challenges (Part 1)
Data centres play a major role in expanding the enterprise computing capabilities. These are a centralised repository for storage, management and dissemination of data...
Simple USB Interface Signal Monitor
Presented here is a simple, low-cost USB interface signal monitoring circuit. It can be used to monitor signal activity for most of the USB...
Intelligent Speech Recognition System for Assisted Living
Speech Recognition is an important user interface enhancement for a variety of devices, ranging from smartphones, voice-controlled entertainment devices in the living room to...
Getting Started With NodeMCU Development Board For IoT
Since Internet of Things (IoT) projects are now quite popular, I recently bought a NodeMCU board to try IoT application development. The NodeMCU development...
How to Correctly Design a DIY Smoke Sensor System
Fire sensors are essential elements for detecting fires in homes accurately, quickly and for reliably accomplishing both first-order firefighting and second-order disaster prevention. To...
Iso-Buck Converters: Better than Flyback Converters?
Input voltages below 60V are considered to be safe to touch. Still, there remains a need for isolation in this operating range. After all,...
RGB Bulb Using NE555 Timer
The main objective of this RGB bulb using 555 timer circuit is to produce different light colours with the help of NE555 timer IC...
How to Reduce Size and Weight of Pulse Load Power Supply
There are a number of electronics devices that require clear, pulsed power supply. For instance, power consumption of contemporary high-performance processor devices directly depends...
Garden Solar Light
Many homes come with backyard gardens or open spaces, and adding a garden light can make these areas usable at night. But traditional lighting...