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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!
Arduino Based Windows PC Volume Remote Control
Presented here is a project that turns your Arduino into a remote control. Infrared (IR) remotes have been very prominent since 1980’s. In today’s...
Get started with NOT Gate IC | 7400 Series Tutorials
NOT Gate Logic Symbol and Boolean ExpressionTruth Table for NOT gate ICRecommended Operating Conditions of NOT Gate IC 7404Pin-Out Diagram of 7404 NOT Gate IC7400...
Temperature Control & Indicator System
Here is an easy-to-construct temperature indicator-cum-controller that can be interfaced with a heater’s coil to maintain the ambient room temperature. The temperature control system is...
How Startups Can Hasten Design Without Burning Through Funds
Developing a project from scratch is every designer’s dream. Unfortunately, most ideas are not designed for manufacturing from the beginning. Often, the changes required...
Mobile Sniffer
This mobile sniffer circuit can detect the use of a GSM mobile in mobile-phone-restricted areas such as examination halls and other ‘do not disturb’...
USB Interface Using Python Software
This is a simple transistor’s output characteristic curve-tracer program through PIC microcontroller & USB interface using Python programming language. Output characteristic curve of a...
TINY DEW SENSOR
Dew (condensed moisture) adversely affects the normal performance of sensitive electronic devices. A low-cost circuit for a dew sensor described here can be used...
Contactless Battery Charger
These days mobile phones with contactless charging are readily available. The circuit shown here explains how contactless charging of a battery can be done,...
Cellphone-Based Remote Controller for Water Pump
Inconvenience in switching on a water pump installed in a remote farm is a common problem faced by farmers. Many circuits have been developed...
Time-Controlled Switch Using PIC16F72
A time controlled switch is an automatic timer switch that turns an appliance ‘on’ for the desired time duration. After the preset time duration,...
RF Controlled Aircraft
Presented here is a RF controlled aircraft project based on Arduino and 433MHz RF modules controlling a brushless DC motor and three servo motors....
Vibration Sensor
Presented here is a sensitive alarm using a vibration sensor for application as a simple surveillance system for protecting doors and windows. It can...
Water Level Indicator with Alarm
Here is a simple, versatile circuit which indicates the level of water in a tank. This water level indicator alarm consists of twelve levels....
Automatic Temperature Controlled Fan
Here is a circuit through which the speed of a fan can be linearly controlled automatically, depending on the room temperature. This temperature controlled...
Simple Two Way Amplifier For Microphone And Guitars
A self-made audio power amplifier for a guitar or violin should be simple, low-cost and reliable. It is good to have two separate loudspeakers...
Dual-Laser Security System Using An Old Feature Phone
A security system having a single laser beam may not be very effective as any moving object or animal can interrupt it, causing a...
Water Level Indicator
Here’s a simple water level indicator for overhead tanks that uses three LEDs (LED1, LED2, and LED3) to indicate minimum, middle, and maximum water...
Ultrasonic Distance Meter Using Raspberry Pi 2
Ultrasonic ranging module HC-SR04 provides 2cm to 400cm non-contact distance measurement range. Its accuracy can reach ±3mm with a cycle period of 50ms, which...