Abstract:- The Smart Shopping Trolley system is designed to enhance the customer shopping experience by integrating advanced technology. It features an automatic billing mechanism and is capable of following user commands through hand gesture recognition. A built-in barcode scanner enables customers to scan items as they shop, with product details and prices instantly updated to the digital cart via the internet. This bill is then automatically sent to the store’s billing counter, reducing the time spent in queues and eliminating the need for manually pushing or pulling the trolley. This intelligent trolley incorporates components such as an ultrasonic sensor, ESP8266 microcontroller, Wi-Fi module, and a weight sensor. When a customer scans a product, it is recorded in the cart, and a running total is maintained, allowing for seamless billing while concluding the shopping session. All elements are integrated within an Internet of Things (IoT) framework and have undergone testing to ensure optimal performance. After the shopping and payment process is completed, the trolley autonomously returns to its docking station.

Keywords: IoT, Bluetooth, Barcode Scanners, Obstacle avoidance, Android application

| DOI: 10.17148/IARJSET.2025.125384