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Engineering Projects For You

Free engineering project ideas, circuit diagrams and software codes for students and hobbyists. Complete instructions on DIY electronic devices. EFY tested circuits with source codes.

Optoreflective Sensor

Here is a simple optoreflective sensor circuit based on TCRT5000 module. It is ideal for projects like robotics, position sensing, proximity sensing, detection of reflective materials and many more. Its range...

Low-Cost PWM Module For Arduino Or Development Kit With MCU

This short article describe simple circuit capable to convert a TTL/CMOS PMW signal to analog signal. The circuit can be used as extension shield for Arduino, with simple MCU or with TTL/CMOS...

DIGITAL SATELLITE FINDER

This article describes a tool that we can build ourselves to assist with aligning the satellite-TV dish without having to take our receiver outside. We are proposing a signal strength measurement...

Wristband Based GPS Navigation System

The GPS and the sensor technologies have been evolved over the past decade in the global market of transport and navigation. These technologies lead the world for more safety of people...

USB LED Night Light

A typical USB LED bulb shown in Fig. 1 is a 5V, 5W USB-powered solid-state lamp. At the heart of this light bulb is a circular aluminium PCB made with a...

Micro-Solder Pot

To make a great solder joint, component preparation is a must. This sounds unimportant, but it is very important to clean the component leads, wires and contact surfaces prior to soldering...

Electronic Eye Security System

The electronic eye security systems available in the market are expensive, and programming is very difficult for a microcontroller based system. Here is a simple and inexpensive electronic eye security system...

Some Techniques For Lowering Power Consumption

While very-large-scale integration (VLSI) and complementary metal oxide semiconductor (CMOS) technologies have had an exponential growth, energy-storage technologies have grown slowly, requiring improvement in electronic circuit designs. Today, such ICs are...

Extracting Centre Of Mass In A Binary Pattern using MATLAB

Extraction of centre of mass of a binary pattern is an important task in pattern recognition area in digital image processing domain. The pattern’s shape and size can be estimated using...

Satellites Deciphered

We are nothing but a speck on the canvas of the universe; but this has not set a limit to our ambitions of exploring it. Space has always managed to fuel...