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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!

HVAC Control Reference Design

A way to build automotive climate systems is here—combining motor control, sensing, and user interfaces to reduce development time and support new system capabilities. The...

5 Interesting Reference Designs For Ethernet Networks

Explore a few Ethernet designs that make building networks faster and easier for data centres, factories, cars, and smart devices. High-density Ethernet designs help you...

Sawtooth Wave Generator Using 4-Bit DAC

A sawtooth (staircase) wave generator is a circuit that converts a digital binary sequence into a rising analogue voltage ramp. With a 4-bit R-2R...

CAN-Bus-Based Doppler Radar and IMU Sensor System

The controller area network (CAN) bus is a reliable, real-time communication protocol and remains the backbone of modern automotive, electric vehicle, aerospace, and marine...

Battery Pack Balanced Cell Charge Monitoring System

Balanced charging of each cell in a battery pack is critical to meeting system requirements and maximising lifespan, while continuous monitoring of temperature, current,...

Fan Cooling For Improved Performance Of Refrigerators

The refrigerator is one of the most heavily used household appliances, operating continuously throughout the year. Therefore, any improvement in its operating conditions can...

Choosing The Right Materials For Automotive Electronics

Designing modern automotives filled with complex electronics poses a variety of challenges. Can innovative materials such as adhesives, coatings, and resins help you extend...

Portable Ultrasonic Trench Logger For Optical Fibre Cable

In modern telecom infrastructure deployments, optical fibre cable (OFC) is typically laid in underground trenches, where maintaining the specified trench depth is critical for...

Reference Design for Air Conditioner Outdoor Units

A complete system-level reference design enabling dual-motor control, advanced inverter technology, and optimized power conversion for modern, energy-efficient air conditioner outdoor units. The Renesas AIR-CON-ODU-REF...

Remote Control Over Internet Using Mobile

The article discusses a way of controlling a device (turn ON/OFF) remotely over Internet using an Android Mobile and an ESP32 Wi-Fi module. This...

DIY H-Bridge Motor Driver for N20 DC Motors

If you’ve ever worked with N20 gear motors, you already know the struggle—adding an external motor driver module increases wiring, takes up space, and...

Dual-axis motor drive on a single MCU design

Dual-axis motor control delivers response, speeds, and precision from a single controller using control techniques. TIDM-02007, a reference design from Texas Instruments (TI) demonstrates a...

Reliable Medical Alarm Reference Design

Featuring high-fidelity audio alerts, robust power backup with supercapacitors, and integrated visual indicators in a compact, ready-to-deploy design. The Texas Instruments TIDA-010264 reference design provides...

This IoT Project Tracks Nuclear Radiation Live

Nuclear leakage detection and radiation monitoring have become critical as the world generates increasing amounts of nuclear waste. Almost every country produces nuclear waste,...

Tachometer with LED display using Arduino

Measuring the speed of a rotating object is a common requirement. Knowing the speed of table and ceiling fans, as well as kitchen appliances...

Energy Monitoring in Real Time with IoT

Earlier, we designed a smart energy meter that used a current sensor to measure current. In that version, we manually set the voltage range...

Power supply architecture reference design

Power systems are getting complex. This reference design shows a way to build multi-rail supplies with load support and protection features. Power systems used in...

Efficient Isolated Flyback Power Reference Design 

A ready-to-use reference design that helps engineers quickly develop reliable, compact, and efficient isolated DC-DC power supplies with reduced design complexity and faster time-to-market. An...
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