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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!

High-Power RF Amplifier Reference Design 

A ready-to-use RF power amplifier reference design delivers up to 100 W across 1.8 MHz to 250 MHz, featuring a reusable PCB layout, optimized...

Bidirectional eFuse Reference Design

The eFuse helps engineers protect high-voltage circuits, monitor current, and connect or disconnect batteries safely. Can this design simplify the eMobility systems? High-voltage eMobility applications...

Off-Battery Processor Power Reference Design

Car processors need many power rails, but getting them from a 12 V battery is hard. This design shows a way to do it safely...

IO-Link Proximity Sensor Reference Design 

A compact, energy-efficient reference design brings IO-Link-enabled optical proximity sensing to industrial automation, combining low power, high reliability, and easy system integration for next-generation...

Human Skin Temperature Sensing Reference Design

Measuring skin temperature in wearables is hard. This reference design shows how to get readings using sensor placement, signal paths, and small boards. Wearable devices...

Raspberry Pi Video Streaming Over Internet

This project proves that reliable, long-term live video streaming and motion-based surveillance can be achieved using just a Raspberry Pi Zero, a 5MP camera,...

Touch-controlled AC Solid-state Relay

The demand for modern touch-based control systems is rising quickly, driven by their sleek design, ease of use, and lack of mechanical components. This...

Water Level and Temperature Monitoring Using Arduino

This water level and temperature monitoring system uses contact or non-contact water level sensors along with a probe-type temperature sensor. A digital display provides...

IoT-Based Environmental and Gas Sensing for Real-Time Monitoring

This project presents a compact, battery-powered IoT environmental and multi-gas sensor module designed for real-time air quality monitoring. Using the BME690 and MICS-6814 sensors...

Laptop-based HMI For DC Motor Speed and Direction Control using Arduino

The article explains a laptop-based human-machine interface (HMI) system that allows users to control the speed and direction of a DC motor using software...

Automatic Delay-Off Timer Circuit

This delay-off timer is a cost-effective, reliable, and easy-to-assemble device for automating time-based switching operations. It improves energy efficiency and adds convenience in both...

5 Wearable Electronics Reference Designs

Build wearables faster with sensors, Bluetooth, and extended battery life—powered byready-to-use reference designs. Wearable electronics are increasingly common in health, fitness, and industrial applications, but...

Raspberry Pi Flight Tracker: Step-by-Step Guide

Flight tracking is fascinating—you can watch aeroplanes move in real time, see their altitude, speed, and even where they’re headed. Many aviation fans and...

Reference Design Of Health Sensor Platform

Struggling to develop wearable health devices fast? See a platform that tracks vital signs, measures sleep and stress, and saves engineers months of design...

Ultrasonic Distance Sensor Reference Design

This is a small compact ultrasonic sensor for industry 4.0 features low power, real-time data communication for industrial robots. Engineers often struggle with squeezing complex...

Working With 400×168 Four Colour e-Paper

How does a colour e-Paper display (like red/black/white/yellow or red/black/white/grey) work without any backlight? Why do they consume so little power, and how do...

Industrial Multi-Sensor Reference Design

A reference design that might help engineers build industrial sensor networks, integrate IO-Link, and reduce MCU workload. Read on! When we design industrial sensor and...

IoT-Based Soil Moisture Mapping

In an era where sustainable farming and efficient resource management are paramount, the Soil Moisture Mapping project emerges as an innovative, low-cost solution for...
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