Smart Trolley Using RFID

We all have waited in a queue for payment in shopping malls and other places, its very tiring and wastes a lot of time in the billing proces

ExpertFull instructions provided2 hours4,400

Things used in this project

Hardware components

Arduino Nano R3

Software apps and online services

Arduino IDE

Story

We all have waited in a queue for payment in shopping malls and other places, its very tiring and wastes a lot of time in the billing process. Today we will build a smart shopping cart with an automatic billing system that not only reduces the waiting time but also makes the process very smooth and easy.
Here we use RFID cards and RFID readers with Arduino to build the Smart Shopping Cart project. The cart information and total value will be displayed on the webpage as well as on LCD.

Working Video :-

Code

Smart trolly code

//Prateek
//www.prateeks.in

#include <Arduino.h>
#include <LiquidCrystal_I2C.h>
#include <Wire.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);

char input[12];
int count = 0;
int a;
int p1=0,p2=0,p3=0,p4=0; 
int c1=0,c2=0,c3=0,c4=0;

double total = 0;
int count_prod = 0;


void setup ()
{
//  Pin direction
   
  pinMode(3, INPUT_PULLUP);   //Push Switch
  pinMode(4, OUTPUT);         //RED LED
  pinMode(5, OUTPUT);         //BUZZER
  pinMode(6, OUTPUT);         //GREEN LED

// Initialization
  Serial.begin(9600);

  
//  lcd.begin();
 lcd.init();
  lcd.backlight();
  lcd.setCursor(0, 0);
  lcd.print(" AUTOMATIC BILL");
  delay (2000);
  lcd.setCursor(0, 1);
  lcd.print("  SHOPPING CART       ");
  delay (2000);
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("   WELCOME TO ");
  lcd.setCursor(0, 1); 
  lcd.print("JUSTDOELECTRONIC");

}
 void loop()
{
  
 count = 0;
    while (Serial.available() && count < 12)
    {
      input[count] = Serial.read();
      delay(5);
    }
      int a=digitalRead(3);
      
     if ((strncmp(input, "4000350ABAC5", 12) == 0) && (a == 1))
      {
       
        lcd.setCursor(0, 0);
        lcd.print("Butter Added       ");
        lcd.setCursor(0, 1);
        lcd.print("Price(Rm):4.00      ");
        digitalWrite(4,HIGH);
        digitalWrite(5,LOW);
        digitalWrite(6,HIGH);
        delay(2000);
        total = total + 4.00;
        count_prod++;
        digitalWrite(4,LOW);
        digitalWrite(5,HIGH);
        digitalWrite(6,LOW);
        
      }


      else if ((strncmp(input, "4000350ABAC5", 12) == 0) && (a == 0))
      {
        if(p1>0)
        {
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("Butter Removed!!!        "); 
        digitalWrite(4,HIGH);
        digitalWrite(5,LOW);
        digitalWrite(6,HIGH);
        delay(2000);
        total = total - 4.00;
        lcd.clear();
       digitalWrite(4,LOW);
        digitalWrite(5,HIGH);
        digitalWrite(6,LOW);
        }
        else
        {
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("Not in cart!!!        ");
        digitalWrite(4,HIGH);
        digitalWrite(5,LOW);
        digitalWrite(6,HIGH);
        delay(2000);
        digitalWrite(4,LOW);
        digitalWrite(5,HIGH);
        digitalWrite(6,LOW);
        lcd.clear();
        }
      }


       if ((strncmp(input, "4000351B7B15", 12) == 0) && (a == 1))
      {
        lcd.setCursor(0, 0);
        lcd.print("Milk Added       ");
        lcd.setCursor(0, 1);
        lcd.print("Price(Rm):6.00      ");
       
        digitalWrite(6,HIGH);
        delay(2000);
        total = total + 6.00;
        count_prod++;
        digitalWrite(4,LOW);
        digitalWrite(5,HIGH);
        digitalWrite(6,LOW);
        
      }


      else if ((strncmp(input, "4000351B7B15", 12) == 0) && (a == 0))
      {
        if(p2>0)
        {
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("Butter Removed!!!        ");
         digitalWrite(4,HIGH);
        digitalWrite(5,LOW);
        digitalWrite(6,HIGH);
        delay(2000);
     
        lcd.clear();
        digitalWrite(4,LOW);
        digitalWrite(5,HIGH);
        digitalWrite(6,LOW);
        }
        else
        {
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("Not in cart!!!        ");
         digitalWrite(4,HIGH);
        digitalWrite(5,LOW);
        digitalWrite(6,HIGH);
        delay(2000);
        digitalWrite(4,LOW);
        digitalWrite(5,HIGH);
        digitalWrite(6,LOW);
        lcd.clear();
        }
      }

    if ((strncmp(input, "4000355181A5", 12) == 0) && (a == 1))
      {

     lcd.clear();  
     lcd.setCursor(0, 0);
     lcd.print("Total Price :-");
        
     lcd.setCursor(0, 1);
     lcd.print(total);

     delay(5000);
     lcd.clear();
   lcd.setCursor(0, 0);
  lcd.print("  THANKS FOR  ");
   lcd.setCursor(0, 1);
  lcd.print("   VISITING ");
     
      }     

}

Credits

JustDoElectronics

2 projects • 0 followers

Electronics And Tele-Communication Engineer

Smart Trolley Using RFID