Smart Trolley System For Automated Billing Using RFID and Raspberry Pi



  • Project Overview:
    • The project involves developing a smart shopping trolley that automates the process of item identification, billing, and management.
    • It utilizes RFID (Radio-Frequency Identification) technology to identify items placed in the trolley and Arduino microcontrollers for processing and control.
  • Hardware Components:
    • Raspberry Pi: The brain of the system, responsible for processing data from various sensors and controlling the system’s operations.
    • RFID Module: Used for item identification. Each item in the store is equipped with an RFID tag containing unique identification information.
    • LCD Module: Displays information such as the list of items in the trolley, billing details, and any user instructions.
    • Buttons: Used for user interaction, such as adding or removing items from the trolley.
    • Buzzer: Provides audio feedback to the user, such as confirming successful addition or removal of items.
  • System Functionality:
    • Item Identification: When an item with an RFID tag is placed in the trolley, the RFID module reads the tag’s information and sends it to the Arduino for processing.
    • LCD Display: The LCD module displays relevant information to the user, including the list of items in the trolley, their prices, and the total bill.
    • Adding and Removing Items: Users can interact with the system using buttons to add or remove items from the trolley. The system updates the display and billing information accordingly.
    • Billing: The system calculates the total bill based on the items in the trolley and displays it on the LCD module.
    • Buzzer Feedback: The buzzer provides audible feedback to the user, confirming successful addition or removal of items or any other relevant events.
  • User Interface:
    • The LCD module serves as the primary user interface, providing clear and concise information about the items in the trolley and the billing process.
    • Buttons allow users to interact with the system, adding or removing items as needed.
    • The buzzer enhances the user experience by providing feedback for successful actions or alerts for any errors or issues.
  • Benefits:
    • Streamlined Shopping Experience: The smart trolley simplifies the shopping process by automating item identification and billing, reducing the need for manual calculations.
    • Enhanced Efficiency: By utilizing RFID technology and Arduino microcontrollers, the system improves the efficiency of shopping operations, leading to shorter checkout times and reduced queues.
    • User-Friendly Design: The intuitive user interface and interactive features make the smart trolley accessible to a wide range of users, including those with limited technical knowledge.

Project Code:

  • Download project code from below button.
  • If you want to understand code explanations then please watch YouTube video.

Click here to download code


YouTube Video:

  • If you want to understand how to connect hardware with Raspberry Pi,
  • And Program explanation for this project,
  • And how to do this project by yourself then please watch our YouTube video.

YouTube Video Link Click Here


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