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Main_Code.ino
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Main_Code.ino
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#include<Wire.h>
#include<LiquidCrystal_I2C.h>
#include <SoftwareSerial.h>
#include <Keypad.h>
#include <SPI.h> //RFID
#include <MFRC522.h> //RFID
LiquidCrystal_I2C lcd(0x27,16,2);
SoftwareSerial hc05(10,11);
//RFID Start
#define SS_PIN 53
#define RST_PIN 13
int card_pin = 6;
int ring_pin = 12;
#define card "40 EF 81 7C"
#define tag "D3 46 14 0A"
MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance.
//RFID End
int count=0;
int cost = 0;
int balance=500;
int password=787;
int password1=8787;
bool flag =false;
const int ROW_NUM = 4; //four rows
const int COLUMN_NUM = 4; //four columns
char keys[ROW_NUM][COLUMN_NUM] = {
{'1', '2', '3', 'A'},
{'4', '5', '6', 'B'},
{'7', '8', '9', 'C'},
{'*', '0', '#', 'D'}
};
byte pin_rows[ROW_NUM] = {9, 8, 7, 6}; //connect to the row pinouts of the keypad
byte pin_column[COLUMN_NUM] = {5, 4, 3, 2}; //connect to the column pinouts of the keypad
Keypad keypad = Keypad( makeKeymap(keys), pin_rows, pin_column, ROW_NUM, COLUMN_NUM );
void setup() {
Serial.begin(9600);
//lcd.begin(16,2);
//RFID Start
SPI.begin(); // Initiate SPI bus
mfrc522.PCD_Init(); // Initiate MFRC522
Serial.println("Approximate your card to the reader...");
Serial.println();
pinMode(card_pin,OUTPUT);
pinMode(ring_pin,OUTPUT);
//RFID End
lcd.init();
lcd.backlight();
hc05.begin(9600);
}
void loop()
{
//RFID Start
// Look for new cards
if ( ! mfrc522.PICC_IsNewCardPresent())
{
return;
}
// Select one of the cards
if ( ! mfrc522.PICC_ReadCardSerial())
{
return;
}
//Show UID on serial monitor
Serial.print("UID tag :");
String content= "";
byte letter;
for (byte i = 0; i < mfrc522.uid.size; i++)
{
Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
Serial.print(mfrc522.uid.uidByte[i], HEX);
content.concat(String(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " "));
content.concat(String(mfrc522.uid.uidByte[i], HEX));
}
Serial.println();
Serial.print("Message : ");
content.toUpperCase();
/*
if (content.substring(1) == card) //change here the UID of the card/cards that you want to give access
{
Serial.println("Authorized access to this card");
Serial.println();
digitalWrite(6,HIGH);
delay(3000);
digitalWrite(6,LOW);
}
if(content.substring(1) == tag)
{
Serial.println("Authorized access to this tag");
Serial.println();
digitalWrite(12,HIGH);
delay(5000);
digitalWrite(12,LOW);
}
else
{
Serial.println(" Access denied");
delay(3000);
}
*/
//RFID End
if(content.substring(1) == tag && balance>=100){
Serial.println("Authorized access to this tag");
Serial.println();
digitalWrite(12,HIGH);
char keypressed = keypad.getKey();
if (keypressed != NO_KEY)
{
lcd.clear();
lcd.setCursor(0, 0);
Serial.print(keypressed);
if(keypressed=='1')
{
hc05.print("\nPIZZA "); //Send message to smartphone
delay(100);
lcd.setCursor(2, 0);
lcd.print("1. PIZZA ");
lcd.setCursor(2, 1);
lcd.print("250 taka");
count = count+10;
cost = cost + 250;
balance-=250;
}
if(keypressed=='2')
{
hc05.print("\nSORMA "); //Send message to smartphone
delay(100);
lcd.setCursor(2, 0);
lcd.print("2. SORMA ");
lcd.setCursor(2, 1);
lcd.print("100 taka");
count = count+5;
cost = cost + 100;
balance-=100;
}
if(keypressed=='3')
{
hc05.print("\nBURGER "); //Send message to smartphone
delay(100);
lcd.setCursor(2, 0);
lcd.print("3. BURGER ");
lcd.setCursor(2, 1);
lcd.print("150 taka");
count = count+10;
cost = cost + 150;
balance-=150;
}
if(keypressed=='5')
{
lcd.setCursor(2, 0);
lcd.print("Your Balance:");
lcd.setCursor(2, 1);
lcd.print(balance);
lcd.print(" Taka");
}
if(keypressed=='7'){
balance+=500;
lcd.setCursor(0, 0);
lcd.print("Balance Reacharged");
delay(1000);
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("Current Balance: ");
lcd.setCursor(0, 1);
lcd.print(balance);
lcd.print(" Taka");
delay(2000);
lcd.clear();
}
if(keypressed=='8'){
balance+=1000;
lcd.setCursor(0, 0);
lcd.print("Balance Reacharged");
lcd.clear();
delay(500);
lcd.setCursor(0, 0);
lcd.print("Current Balance: ");
lcd.setCursor(0, 1);
lcd.print(balance);
lcd.print(" Taka");
}
}
if(keypressed=='*')
{
Serial.println(" Access denied");
hc05.print("\nOrder Confirmed ");
digitalWrite(12,LOW);
lcd.setCursor(0, 0);
lcd.print("Order Received");
delay(2000);
lcd.clear();
lcd.print("Processing Time : ");
lcd.setCursor(2, 1);
lcd.print(count);
lcd.print(" min");
delay(1000);
lcd.clear();
delay(2000);
lcd.setCursor(0,0);
lcd.print("Total Cost:");
//lcd.setCursor(2, 1);
lcd.print(cost);
cost=0;
count=0;
delay(10000);
lcd.clear();
}
if(keypressed=='9')
{
Serial.println(" Access denied");
digitalWrite(12,LOW);
}
if(keypressed=='#')
{
hc05.print("\nCenceled Whole Order ");
lcd.setCursor(0, 0);
lcd.print("Order Cenceled");
count=0;
cost=0;
//balance=500;
delay(5000);
lcd.clear();
}
}
else {
lcd.setCursor(0, 0);
lcd.print("Balance");
lcd.setCursor(0, 1);
lcd.print("Insufficient");
delay(1000);
lcd.clear();
cost=0;
count=0;
balance=500;
lcd.setCursor(0, 0);
lcd.print("Please Reacharge");
delay(1000);
lcd.clear();
lcd.setCursor(2, 0);
lcd.print("7--> 500");
lcd.setCursor(2, 1);
lcd.print("8--> 1000");
delay(3000);
lcd.clear();
}
}