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Community Projects

A prototype is an early sample, model, or release of a product built to test a concept or process or to act as a thing to be replicated or learned from.

Optical Slave Flash Trigger

A "slave flash" (also known as speed light/strobe) is a flashgun that sits around quietly until it sees a bright light. When the slave sees a flash, it flashes itself. Employing...

Identifying Bone Cancer Using Markov Random Field Segmentation

Medical Image Segmentation Medical Image Segmentation is the process of automatic or semi-automatic detection of boundaries within a 2D or 3D image. A major difficulty of medical image segmentation is the high...

How to Construct a Gradual ON and OFF Bulb

This circuit can be used for making a beautiful light for your Christmas star or Diwali lanterns for your festive evening. The speciality of this light is that its brightness increases gradually...

Multi Channel Hardware Driver for Embedded Systems

The real world embedded systems are controlling DC motors, stepper motors, electromagnetic relays, incandescent lamps, powerful LEDs, displays, inductors, transformers, long cables, etc. On the market we can find large variety of...
low cost high impedance buffers circuit

Low Cost High Impedance Buffers for Oscilloscopes and Voltmeters

Most of the low cost digital oscilloscopes and voltmeters have input resistance around 1 MOhm and input capacitance around 100pF. But in many case we are in need of input resistance...

Dual bridge driver on expansion module with L293P for Arduino

The short article describes simple but useful four channel driver expansion module with L293P for Arduino. The board can be called power shield, motor shield or driver shield because gives the possibilities...
6v laser security system

Laser Security System

Presented here is a 6v Laser security system that can be easily programmed for any password. This project powered using a mobile charger which gives 6 volts and 500 mA. It...
Fig. 6. The result of the system showing driver status

Road Safety Solution for Drunken Driving

Drunken driving is one of the major problems today, this causes several deaths every year across the world. Here is a simple method of sensing alcohol in the breath of the...

RFID-Based Automatic Desktop/Mobile Phone Login Device (Hindi & English Video)

We have so many login passwords to remember in order to access our laptops, emails or online banking. And forgetting password is something that we often face, and when we are...

GSRTC Smart Card

This project is based on the AEIOU heuristic framework of Design Engineering Approach. Design for Performance, Safety and Reliability is ensured in terms of fast response, restricted entry and authentic user. Design for...