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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!
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...
Ensuring Lower Thermal Dissipation for Higher Efficiency
A renowned manufacturing firm incurred heavy monetary losses when clients returned 5000 units of its LED lights after discovering that the supplied units failed...
30W Audio Amplifier Using NE5534 and Darlington Transistors
There are many different audio power amplifier ICs to choose from, but designing an audio power amplifier using an operational amplifier (op-amp) and bipolar...
Fan Speed Increasing Regulator Using PIC16F73
Voltage dips in mains supply make fans run very slow, leaving you sweaty through hot summers, especially if you don’t own an air-conditioner (AC)....
Design and Analysis of A Single Stage Transistor Amplifier Using C++
Single stage transistor amplifierDesign GuidelinesSoftware ProgramDownload source code: click here
Designing a single-stage transistor amplifier requires numerous formulas to calculate various parameters, such as the...
Electronics Projects: Controlling a Stepper Motor Using a Rotary Encoder
Presented here is a project for controlling stepper motor using rotary encoder. It consists of a Raspberry Pi (Raspi) board, 5-pin rotary encoder, 5V...
Faraday’s Guitar
Experimenting with the fundamentals of electrical and electronics is always interesting. Presented here is an electronic circuit that demonstrates Faraday’s law of electromagnetic induction...