DefinePK

Abstract

Shops are notoriously known for issuing their own currency (plastic currencies) and often issuing chocolates instead of remitting the proper change to the customer. These plastic coins issued are not accepted at other places. This work is used for providing sophisticated customer balance using RFID and microcontroller for solving the aforementioned problem. Unlike other transaction services this system can only be used for transactions ranging from 1 to 9 rupees. Each user is provided a RFID Tag and the microcontroller remembers all the RFID cardholders by maintaining a database of all transactions and updating the balance amount as and when used. The RFID tags here are similar to our college ID cards or even voter IDs. All the balances are digitized. When a customer uses the card or swipes the card against RFID module the system authenticates the transaction by asking for a password and once authenticated the system shows transaction options available to the customer. This system provides an efficient balance returning to customers and also saves time and money. It is an eco-friendly method as it aspires to eliminate all plastic coins from the environment.