SWITCHING SYSTEM WITH IBUTTON

MUHAMMET BERDİCİYUSUF KÖSESOYSEFA ŞİMŞEKZAFER YILMAZ

SUBMITTED TO:ASST.PROF.VEDAT MEHMET KARSLI

MAIN PURPOSEThe fundamental goal

here to investigate the transportation access system.

There are many similarities between a typical dc motor drive and ibutton switching system so it gives us opinions about motor drives.

EXPECTATIONSTo observe engineering investigations and

the aspect of production.Developing softwareOptimizing circuit or circuit design

developmentDevelop a pc human interface with visual c

language.

WHAT IS AN IBUTTONThe iButton is a

computer chip enclosed in a 16mm thick stainless steel can.

Because of this unique and durable container, up-to-date information can travel with a person or object anywhere they go.

IBUTTON COMPONENTSAn iButton uses its

stainless steel 'can' as an electronic communications interface.

Each can has a data contact, called the 'lid', and a ground contact, called the 'base'. Each of these contacts is connected to the silicon chip inside.

The lid is the top of the can;

The base forms the sides and the bottom of the can and includes a flange to simplify attaching the button to just about anything.

The two contacts are separated by a polypropylene grommet.

1-WIRE COMMUNICATIONBy simply touching the iButton to the two

contacts you can communicate with it through one-Wire protocol.

1-wire is the protocol can provide device communications with low speed data,signal or power.

A network with an associated master is called microlan.

One distinctive feature of the bus is the possibility to use only two wires: data and ground.

To accomplish this, 1-wire devices include an 800 pf capacitor to store charge, and power the device during periods when the data line is active.

Systems of sensors and actuators can be built by wiring together 1-Wire components. Each component contains all of the logic needed to operate on the 1-Wire bus.

Each 1-Wire chip has a unique ID code. This feature makes the chips, especially in an iButton package, suitable for use as a key to open a lock, arm and deactivate burglar alarms, authenticate computer system users, operate time clock systems.

GETTING INFORMATIONIt is so simply provide

information flow that just enough to make the lid touched to data wire and ground part to the ground cable of your circuit.

Every i buttons have self id numbers and it is possible to provide communication just with serial numbers.

DURABILITYThe silicon chip

within the iButton is protected by the ultimate durable material: stainless steel. You can drop an iButton, step on it, or scratch it. The iButton is wear-tested for 10-year durability

APPLICATIONS WITH IBUTTONThe iButton is ideal for any application where

information needs to travel with a person or object. Affixed to a key fob, watch, or ring, aniButton can grant its owner access to a building, a PC, a piece of equipment, or a vehicle.

Some iButton versions can be used to store electronic cash for small transactions, such as transit systems, parking meters, and vending machines. The iButton can also be used as an electronic asset tag to store information needed to keep track of valuable capital equipment

ADVANTAGES OF IBUTTONAs for durability, the thin plastic of smart

cards is no match for the strength of the stainless-steel-clad iButton.

Cost of i button is reasonably lower than other systems.

In addition, the communication rate and product breadth of iButtons goes well beyond the simple memory products typically available with RFID

GRADITUDEThanks to MUSTAFA KIRLANGIÇ for all of

the helps while obtaining equipments.Thanks to bluemavi.com for providing i

button to us.And thanks to mr.VEDAT KARSLI for making

real this project in our minds

THANKS FOR YOUR PATIENCE!