Smart Shopping Trolley based on IoT with Mobile Application

City dwellers freauently visit shopping malls to browse merchandise. Weekends and holidays are the busiest days of the week for retail establishments. Because of the discounts and deals, there is a sense of urgency. People’s shopping carts are filled with a variety of items. Customers must first choose their desired items before paying for them at the cash register. Installing the bill victimization bar code scanner at the billing counter takes time, which may result in customers having to wait for an extended period of time. People spent less time in checkout lines as a result of this study. Similarly, the intelligent shopping cart makes it simple to see the price of each item in the cart. After paying with the app or at the register, customers can take their purchases with them. The hardware components that allow it to function are the Arduino Nano, RFID Card, Reader Module, and Buzzer. Shopping is more efficient if items are not scanned at the register. This method helps clients estimate the total cost of an item. As a result, the shopper can only spend money on necessities. RFID has helped to reduce billing system errors, which cost a lot of money.