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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!
Simple Low-Noise Audio Distribution Amplifier
This article describes a low-cost low noise audio distribution amplifier based on hybrid or mixed technology. Input to the amplifier is from low-noise, high-gain npn...
Multifunction Rechargeable Clock
Building clocks are one of the interesting and easiest projects that can be seen among hobbyists and makers. Presented here is a multifunction rechargeable...
Clock Generator Using Verilog
Presented here is a clock generator design using Verilog that is simulated using ModelSim software. A clock generator is a circuit that produces a...
Daytime Running Lights Controller
Auto makers have been gradually switching to light emitting diode (LED) lighting for automotive headlamps because of its features such as high efficiency and...
Anti-Theft Alarm for Vehicles
This simple and inexpensive anti-theft alarm circuit for vehicles sounds an alarm simulating a police siren whenever someone attempts theft of your vehicle. The...
Electromagnetic Compatibility: Multi-Layer PCB Designing (Part 2 of 5)
In the first part we touched base on multi-layer PCB design. In this part we discuss more about the same.
Multi-layer board and high-speed PCB...
Low Cost Dual Channel Active AC Analog Probe
Introduction
When we are experimenting with AM receivers for LW, MW and SW we are in need of high impedance analog probe with low input...
LM1875 Based Simple Amplifier
LM1875 is a low cost and very popular and useful integrated circuit (IC). It is designed to be stable with gain higher than ten....
How Application-Specific Development Boards Help Designers
Using development boards to design a device makes the job simpler. While selecting the board, go for one that requires minimum changes for your...
Controlling RGB LEDs To Get Million Colors In Your Pocket!
Many modern lighting applications need millions of colors. That is why we are finding RGB (Red Green Blue) LEDs all around us - in...
Transistorized Microphone Preamplifier With Band Pass Filter
Introduction
The signal from most of the microphones should be amplified before to be send to the interconnection cables.
In order to reduce the noise of...
Display Brightness Control Using Ambient Light Sensors
With more than ever electronic products available today and accessible by consumers, Ambient Light Sensors have become an indispensable component for a variety of...
Build Your Own Point-of-Sale (POS) Terminal!
Nowadays, electronic Point-of-Sale systems or EPoS have changed the way we perform transactions. EPoS systems are used worldwide for card-based payments at places like restaurants,...
Sound Operated Device Control System
In movies like Ironman and Players, it is shown that appliances are operated by human speech or sound. Similar concept of a sound operated...
Arduino Based RGB Colour Code Generator
Red, green and blue (RGB) are the basic colours for generating various other colours by mixing colours in a particular proportion. This technique is...
Wireless Bluetooth Audio System For Outdoor Use
Want to take your tunes on-the-go? Bluetooth audio systems are great and give you the freedom to take music wherever you go. Instead of buying an...
How To Make A Wireless Sensor Node?
In many applications, harvesting of ambient energy sources becomes a necessity. Wireless sensor nodes are thus becoming increasingly widespread these days for monitoring and recording...
How To Make A Solar Inverter?
Solar Inverters have now made a wide transition from simply inverting the DC currents of the solar panels to AC. Inverter manufacturers are constantly...