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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!
Automatic Washbasin Tap Controller
Make your washbasin tap work automatically when you put your hands just below the water tap outlet. This infrared-based automatic washbasin tap controller system...
RFID based Attendance System
Most educational institutions' administrators are concerned about student irregular attendance. Truancies can affect student overall academic performance. The conventional method of taking attendance by...
XBee Interfacing With Raspberry Pi Model 2
XBee Pro (S2) module is an XBee ZB ZigBee Mesh Protocol based wireless transceiver designed by Digi International with an excellent range of 1.6...
Contactless AC Mains Voltage Detector
This is a CMOS IC (CD4033) based contactless AC mains voltage detector circuit which can be used to detect presence of AC mains voltage...
LED Based Message Display
This LED based message display is built around readily available, low cost components. It is easy to fabricate and makes use of 3mm red...
Blown Fuse Indicator
A fuse is an electrical safety device that operates to provide overcurrent protection of an electrical circuit. Its essential component is a metal wire...
Mini Offline UPS
Most of the systems are powered by AC mains. Uninterrupted power supply systems (UPSes) are there as a back-up to power the systems when...
Visual and Audible Monitor for Electronic Interfaces
Most of the modern PCs and embedded systems have digital interfaces as RS232, printer ports, LIN, etc. for exchanging of commands and data with...
Panic Alarm
If you feel threatened or need emergency assistance, simply activate this panic alarm. It will catch the attention of others for immediate help. The...
Shock-Proof Remote Switch
Using this shock proof remote switch circuit, you can control any AC/DC appliance remotely through inexpensive, low-voltage cabling and a standard push switch. The...
Infrared Burglar Alarm
A special feature of this infrared burglar alarm is latching operation. Also, the circuit is highly sensitive.
The circuit comprises transmitter and receiver sections. Whenever...
Android Smartphone As Barcode/QR Scanner
We are all familiar with the barcode scanner used in shopping malls, logistics and other places.
These can scan only barcodes and are usually wired....
Digital Soil Moisture Meter
A digital soil moisture meter is used for indicating the water content of a given soil sample. As crop production requires water at different...
Low-Range AM Radio Transmitter
Here is a simple low range radio transmitter for transmission up to 25 metres. It is basically an AM modulator whose signal can be...
10 Microcontroller Based Projects You Must Not Miss!
Looking for some microcontroller based projects to work on? Check out this list and let us know which ones you like.
1. Microcontroller-Based Tachometer
A tachometer...
Ultra-Low-Power Sensor Hub Using nRF24L01 Modules
Presented here is an ATmega328P microcontroller-based ultra low power sensor hub using nRF24L01+ radio frequency (RF) transceiver modules having transmitter and receiver units.
The transmitter...
Computer Vision Based Quality Control Using Python
Quality control is an important process in all manufacturing industries. Normally, it includes checking the final product on sample basis and confirming whether the...
Build Your Own Stereo Amplifier Using TDA2822
Here is a simple stereo amplifier that can be used to amplify audio from mobile devices. IC TDA2822M used in the circuit comes in...