💡Project Idea:
Long billing queues in malls and supermarkets can be frustrating. This project solves that problem by integrating an auto-billing system into the shopping cart itself. Based on an 8051 microcontroller and RFID technology, the system detects items added to or removed from the cart in real-time, calculates the total bill, and displays it on an LCD screen. The customer simply adds/removes products, presses the billing button at the end, and exits with a quick verification using a master RFID card by the shopkeeper.
🧩 Components:
8051 Microcontroller
RFID Reader Module
RFID Tags/Cards
16x2 LCD Display
Crystal Oscillator
Resistors
Capacitors
Transistors
Diodes
PCB and/or Breadboards
LED Indicators
Switches & Push Buttons
Cables and Connectors
Power Adapter/Transformer
ICs and IC Sockets
✨Project Features:
RFID-based real-time item detection
Auto-update of bill on adding/removing items
LCD display for item and total amount view
Billing confirmation via push button
Admin verification using master RFID card
Reduces need for manual billing counters
Ideal for smart shopping automation systems
🚀 Applications:
Smart supermarket trolleys
Automated billing systems
Retail store management
College mini and major projects
Demo model for exhibitions and technical fests
Project Includes:
Project components
Circuit diagram / circuit connections
Source code
Instructions document
Project Types:
- DIY KIT (Do It Yourself KIT) - Along with the components, you will get the source code, circuit diagram/circuit connections, and instructions document to help you build the project easily.
- Ready-Made - We are providing a fully assembled, tested and ready-made project soldered on a PCB with all the other components, code & circuit diagram.
📐 Dimensions (Approx):
Control Unit Box: 12 cm(L) x 10 cm(W) x 5 cm(H)
Shipping dimensions: (Approx)
Length = 20cm
Width = 15cm
Height = 10cm
⚖️ Weight (Approx):
500 gm (excluding physical trolley)
Estimate Project Weight: 1 KG
All the products are made by LearnElectronics India and not for re-sale.
