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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!
IR Remote Control for Home Appliances
Most remote controls around us, use IR for signal transmission. An IR remote control for home appliances helps you connect to your decices at...
Operational Amplifier Gain And DC Offset Program
Presented here is a program to find the gain and DC offset values of an operational amplifier (or op-amp). While doing practical electronics experiments,...
Mobile Charging With Heat Using A TEG Module
This circuit can come in handy when you are camping in a remote area where there is no electricity available to charge your mobile...
Ultrasonic Transmitter and Receiver
Most ultrasonic transmitters and receivers are built around timer IC 555 or complementary metal-oxide semiconductor (CMOS) devices. These devices are preset-controlled variable oscillators. The...
Digital Speedometer
This digital speedometer displays the speed of the vehicle in kmph. An opaque disc is mounted on the spindle attached to the front wheel...
Hybrid Solar Charger
Efficiency of a solar charging system depends on the weather conditions. Usually the solar panel gets four to five hours of bright sunlight in...
Arduino Based GSM Home Security System
This project is designed using normally-closed reed switches connected to doors and windows and additional passive infrared (PIR) motion sensors to detect movement of...
12V Battery Charger-cum-Variable Power Supply
The 12v battery charger-cum-variable power supply circuit presented here can charge a 12V lead-acid battery of 50Ah to 80Ah (even up to 100Ah) capacity...
Remote Control for Toy Car
Make any battery-operated toy car remote controlled using this circuit. This remote controlled toy car circuit, consisting of an infrared transmitter-receiver pair, uses IR...
Advances In Motors And Drivers For Wearables
Ever wondered how your mobile vibrates? Let us see. There is a small motor in your phone, which is responsible for shaking it every...
Remote-Controlled Smartfan Using AT89C2051
The remote-controlled smartfans available in the market are very expensive and their operating principles are difficult to understand. Here is a simple circuit for...
Noise Level Alarm
Noise is a serious environmental problem that affects us in our daily life. There is scientific evidence supporting that noise exposure can cause hearing...
Voice Recorder and Playback System
There are several types of voice recorder and playback systems available in the market but most of them are expensive and their circuits are...
Low Power Voltage Doubler
All miniature electronic devices operate off batteries. Some of them need higher than the standard battery voltages to operate efficiently. If the battery of...
Top 19 Arduino Projects To Build In Your Free Time
We compiled a list of 19 Arduino projects that would be cool to design. If you have an Arduino lying around or are planning...
IR Remote Designs For Home Appliances!
With readily available and inexpensive Infrared emitters and detectors, Infrared (IR) remotes are quite common in almost all home appliances like televisions, CD/DVD players,...
Development Boards DIY and Hobbyists Application
There is no dearth of electronic hobbyists around the globe. There are many expert hobbyists working beyond the scope of imagination, increasing the demand...
Wireless Doorbell
Installing a doorbell in an existing building is a difficult task as it involves wiring that can look shabby if not concealed properly. Presented...