Smart Automatic Billing Trolley Using RFID & LoRa Technology

Abstract – In this fast-running world, time is one of the precious things. People who are shopping in malls and supermarkets spend a lot of time waiting at the billing counter. Tackling this problem and considering the flaws in the current billing system paved the way for the development of an automatic smart trolley for supermarkets. This trolley saves customers’ time and effort by reducing the amount of time they need to spend at the billing counter, during their shopping. Based on the Node MCU (ESP8266) microcontroller and RFID tags, this project scans products. The scanned products will be displayed on the OLED screen which helps the customer to keep track of the total items along with the total cost. This makes the customer enjoy shopping and thus saves time. People must wait in long queues patiently to wait for his turn. To avoid this problem the proposed method introduced an effective and highly advance system. The RFID technology enables the scanning of items simultaneously and automatic display of purchased item and amount on the LCD screen this will help customers to keep track of their purchases and avoid any confusion during the billing process. To tackle this problem especially billing system is proposed. When items are put it gets scanned and purchased item and its amount displayed parallel for payment proceeding. Keywords – RFID (Radio Frequency Identification), LoRa (Long Range) Technology, RFID-based Inventory Management, Low Power Wide Area Network (LPWAN)