Project on Security Entrance System

Our security system is a stand alone device that allows access to registered users identified by their magnetic cards.(For this project, "access" is represented by a lit LED, showing how the system could be used to control an external locking mechanism.)The system includes features such as:

• Multiple accounts, including Administrator accounts (which can create, modify, or delete the other accounts). The account information is stored in non-volatile EEPROM memory, so that it is maintained even if the system is reset.
• A "lock down" of the system when someone tries to gain access by repeatedly swiping incorrect cards.
• A 20x4 LCD display to give the user feedback on the current state (such as "Access allowed." or "try swiping the card the other way.") and to prompt administrators for commands. All messages printed to the LCD are simultaneously transmitted to an RS232 port, so that all activity can be logged by a PC. 

Download Links:
http://www.mediafire.com/?ngtweqtgztjypy2

Mini Project on Robotic Bug:

A free roaming robot does not have to very smart to function that suppose to be an intelligent Manner. The robot has only sense  an obstacle and avoid it. when that is repeated many times a path can always be found through its environment and the robot seems to be surviving on its own. The robot is a lot like to be a insect which contains two antennas that helps it to navigate around obstacle.

Download link:
Robotic Bug Project.Pdf

Project on Ultrasonic Wind Speed Meter:

THIS wind speed meter (anemometer)I is intended for use in a variety of sportstype activities, such as track
events, sailing, hang-gliding, kite and model aircraft flying, to name but a few. It can even be used to monitor the conditions in your garden. A probe is pointed in the direction from which the wind is blowing and a screen
displays the rate at which the wind is moving between two ultrasonic sensors. The readout is shown on an alphanumeric liquid crystal disptay (l.c.d.), i'/ith readings in metres per second, feet per second, kilometres
per hour and miles per hour. The resolution is to the nearest tenth of a metre per second, from zero up to around 50mph, and possibly higher.

Download Links:

Ultrasonic wind speed measurment.pdf

A simple Seismometer/Earthquake detector Project

Most earthquake detectors use a heavy weight attached to a coil moving inside a magnetic field. Earth movement will cause the ground and attached magnet to move. The suspended weight and coil tend to stay stationary and hence a signal is generated. Elaborate electronic filters and damping needs to be employed to get a meaningful signal.

My project avoids some of these problems by the use of ready made detectors with a low impedance and their own built in damping. 

Download  Links:
http://www.mediafire.com/?yzmummj3yvow2zz