Smart Shopping Cart with Automatic Billing System through RFID and Bluetooth
Mostly customers visit supermarkets to purchase daily using products and pay for the same. Therefore, there is need to calculate the number of products sold and also generate the bill for the products purchased by the customer. Cash counters are placed to promote circulation. Currently, many supermarkets are trying to reduce labor costs by introducing check out machines where a single employee can manage a group of machines at once, handling a number of customers at a time. The system provides centralized and automated billing system using RFID and Bluetooth communication. Each product of the shopping mall or super markets will be provided with a RFID tag, to identify its type. Each shopping cart is designed or implanted with a Product Identification Device (PID) that contains microcontroller, LCD, an RFID reader, EEPROM, and Bluetooth module. Purchasing product information will be read through a RFID reader on shopping cart, similarly at the same time the product information will be entered into EEPROM attached to it and EEPROM data will be send to Central Billing System through Bluetooth module. The central billing system gets the cart information and EEPROM data, it access the database of the product and calculates the total amount for that particular cart. Main aim was to provide an automatic billing to avoid queue in malls and super markets.