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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!
How to Protect Telecom Networks
Network failures, whether due to human error or faulty technology, can be very expensive for users and telecom service providers alike. As a result,...
RPM Meter for Automobiles
An efficient way to measure the RPM of a vehicle is through its ignition pulses. RPM of a vehicle is directly proportional to the...
Wi-Fi Embedded Webcam
This project is built around an MRF24WBOMA Wi-Fi module, a PIC microcontroller and a camera module using the TCP-IP protocol. The camera captures live...
Temperature Monitor for Electronic Equipment
As most electronics components’ characteristics vary with temperature, they are selected as per expected operating temperature range of the equipment. So it is important...
Efficient LED Blinking for Embedded Systems
Smart hardware design can simplify the embedded software and make it more reliable. Designers use blinking LED signals to indicate different status and for...
SCR-Controlled EHT Power Supply
Presented here is an extra-high-tension (EHT) power supply capable of delivering variable DC voltage from about 100 V to 5 kV with load current...
Transistor Polarity Checker
Presented here is a simple circuit that will help you figure out whether a transistor is npn or pnp type. If the transistor under...
Demo Circuit for Over-Voltage Protection
Over-voltage protection circuits are used to protect voltage-sensitive loads. Voltage transients may occur due to a number of reasons such as transformer switching, load...
Propeller Message Display with Temperature Indicator
Here we describe a microcontroller-based propeller display that displays any message sent to it via hyper-terminal of a personal computer. Moreover, a temperature sensing...
Dual Motor Control for Robots
Presented here is a simple circuit that can drive two motors for a small robot, allowing the robot to negotiate an obstacle course. Two...
Stereo audio Distribution Buffer for headphones
Most audio signal sources have only one stereo output, which means they can drive only a single pair of headphones with a resistance of...
555 Timer Design Using MATLAB
Presented here is a Matlab program to design an astable multivibrator of desired frequency and duty cycle using a 555 timer. The aesthetic graphical...
Wireless PA for Classrooms
In large classrooms, many a times the teacher’s voice is not audible to students in the back rows. So the teacher have to literally...
Stop Clock With Battery Backup
Stop clock is widely used in various fields to measure the timing of events. Science laboratory experiments, such as measurement of discharge rate of...
EEPROM Interface for Beginners
Electronic systems today incorporate a number of peripheral ICs that have to communicate with each other and the outside world. To maximise hardware efficiency...
How to Ensure Product Reliability
Electronic devices containing delicate components can be easily damaged, unless they are rugged. A truly durable electronic device or gadget is one that substantially...
Designing A Cost-Effective and Versatile Home Area Network Device
The sky-rocketing cost of energy production has necessitated a more efficientenergy consumption process. This has brought revolution in electrical equipment manufacturing and energy metering...
Ensuring LEDs’ Long Life
Long before Fukushima, energy saving was a watchword. Efficient use of energy reduces the number of power stations. The conventional filamentlamps are problematic because...