Ezee Link Card

The EZEE link card was the very first contactless stored value card introduced for public transit use on the conventional public transport like buses and trains Due to its contactless nature, the card completes all its transactions within 0.2 seconds and in this way, revolutionarily makes travelling on buses and trains that much faster and smoother. With the ez-link card, there’s no more fuss and hassle of paying with currency or verifying the correct fare to pay. It is just tap and go! This project is built around an 8051 micro controller and a contact less RFID card. Each passenger is issued a RFID card, he has to recharge it with his convenient amount When a person wants to travel a certain distance he has to show the card to the reader provide at the entrance of the bus, or train door. When he reaches the destination he again shows the card to the card reader from inside. Now the fare is calculated depending on the RF id log with that particular card. In this way the fare is deducted and when it is shown again it automatically takes the current value of the card. As we are not travelling from places, to mimic the situation we are providing switches to provide the source and destination of the passenger to the micro controller. This project uses regulated 5V, 500mA power supply. Unregulated 12V DC is used for relay. 7805 three terminal voltage regulator is used for voltage regulation. Full wave bridge rectifier is used to rectify the ac output of secondary of 230/12V step down transformer.