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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!

Accelerometer based Wireless 3D Air Mouse With Arduino

We have seen different types of Human Interface Devices (HIDs), for example mouse and keyboard. In older versions of computer mouse, optical sensors were...

Communications Equipment Makers Demand High Power Outputs And Small Solution Footprints

Introduction Many communications systems are powered via a 48 V backplane. This voltage is normally stepped down to a lower intermediate bus voltage, typically...

Android Smartphone-Based Function Generator

Android smartphones are rapidly becoming popular in the education industry. Some can even be used as signal or function generators. Bulky signal generators available...

How To Use Relays For Real-World Applications?

This article provides four simple applications that can help understand the control of DC/AC devices to develop real-world applications. Very often, novel and innovative projects...

Interactive Electrical Equipment Control using Arduino

This project presents a user-friendly way of controlling four electrical equipment using an LCD-based interactive menu. Usually, each equipment is controlled by a pushbutton...

Smart Programable OLED Badge

You might have seen and used badges with various logos and smiles. But have you ever seen any electronic badge? In this project, we are...

Thin-Film Deposition Controller Using Microcontroller

This project is used to control the movement of the spray head and nozzle in a thin metal or insulation film deposition system. Here,...

Automatic Fan Controller For An Active Heatsink

This Automatic Fan Controller circuit is based on a thermistor and an operational amplifier (op-amp) that drives a MOSFET to switch a cooling fan...

Antenna Design Considerations For RF Applications

Since there is no unique solution for a particular RF applications, some guidelines are needed. This article looks at some such guidelines. An antenna transmits...

AC Switch Control With Opto-Triac

AC switches are silicon devices that control AC loads directly connected to the AC mains. This means that the driving reference terminal of the...

IoT based Home Automation using Arduino and Android

This project is based on the Android app and Arduino Uno using Bluetooth as the wireless communication medium. It is a simple and flexible...

Temperature Monitoring on Cayenne IoT Platform

This temperature monitoring system is based on Cayenne Internet of Things (IoT) platform, NodeMCU microcontroller (MCU) and Message Queuing Telemetry Transport (MQTT) protocol. The...

OTP-Based Smart Wireless Locking System Using Arduino

In this project, we are going to make an OTP-based smart wireless locking system as you can see in (Fig. 1). This smart lock...

Smart Wireless Water Meter With Web DB IoT Projects

As water consumption and wastage increases day by day, water scarcity has become a growing concern around the globe. While some irresponsible people are...

DC Panel Meter Using Arduino

Panel meters in regulated power supplies are used to display electrical parameters like voltage and current. Presented here is a DC Panel Meter circuit...

Two-Channel Wireless Audio Amplifier Using Bluetooth and TA8210AH

Use of audio amplifiers is increasing day by day. This project deals with the transmission of the audio signal wirelessly and amplification of the...

Greater Functionality Demands Higher Levels Of Technology

Companies are trying to maintain their competitive edge by adding more functionality to their products. This is making systems that were previously relatively simple...

Designing FM Receiver Using GNU Radio and RTL-SDR Dongle

This article covers the designing of an FM receiver using GNU Radio software and RTL-SDR hardware on Ubuntu operating system (OS). With advancements in...
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