🛒 Automated Shopping Cart

An autonomous smart shopping cart system featuring RFID item scanning, load-cell weight verification, and telemetry billing integration.

📸 Project Gallery

Smart Cart Front View	Smart Cart Side View

3D CAD & Tracker Design	Custom PCB & Components

📖 Overview

The Automated Shopping Cart streamlines retail checkout by allowing shoppers to scan items directly as they place them into the cart. An integrated load cell continuously verifies item weights against an onboard database to prevent checkout discrepancies, while real-time telemetry transmits cart contents to the store's central billing system.

🛠️ Key Features

• RFID & Barcode Item Scanning: Instant item detection as products enter the cart.
• Load Cell Weight Verification: Dual load cell sensors verify added product weights to prevent item switching or missed scans.
• Microcontroller Telemetry: Wi-Fi / MQTT telemetry sending cart subtotals directly to the POS billing counter.
• Onboard LCD Display: Displays itemized list, running total, and cart status to the shopper.

🔌 Hardware Architecture

• Microcontroller (ESP32 / Arduino)
• RFID RC522 Reader Module
• HX711 Load Cell Amplifier + Weight Sensor
• 16x2 / 20x4 I2C Character LCD Display
• Rechargeable Li-Ion Power Management Circuit