RFID Based Automatic Toll Collection System Using Arduino Nano

RFID Based Automatic Toll Collection System Using Arduino Nano

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Components list:

* Arduino Nano

* RC522 RFID Reader

* Servo Motor

* IR Obstacle Sensor

* 10k potentiometer
* 16*2 Lcd Display

* Buzzer

* Veroboard

* Some Jumper wire

Circuit Diagram:

Demo Photo:

CODE:

#include <SPI.h> #include <MFRC522.h> #include <OnewireKeypad.h> #include <LiquidCrystal.h> #include <Servo.h> LiquidCrystal lcd(7, 6, 5, 4, 3, 2); Servo servo; int servoPos = 0; #define sensorPin1 A2 #define sensorPin2 A3 #define buzzerPin A4 int senVal1 = 0; int senVal2 = 0; #define RST_PIN 8 #define SS_PIN 10 int card1Balance = 5000; int card2Balance = 300; #define num 7 char Data[num]; byte data_count = 0; String num1, num2, card, card2; int a, b; char Key; bool recharge = true; MFRC522 mfrc522(SS_PIN, RST_PIN); int state = 0; //char KEYS[] = { // '1', '2', '3', 'A', // '4', '5', '6', 'B', //'7', '8', '9', 'C', // '*', '0', '#', 'D' //}; OnewireKeypad <Print, 16 > KP2(Serial, KEYS, 4, 4, A0, 4700, 1000, ExtremePrec ); void setup () { lcd.begin(16, 2); Serial.begin(9600); servo.attach(9); servo.write(30); pinMode(sensorPin1, INPUT); pinMode(sensorPin2, INPUT); pinMode(buzzerPin, OUTPUT); KP2.SetKeypadVoltage(5.0); SPI.begin(); mfrc522.PCD_Init(); lcd.setCursor(0, 0); lcd.print(" Automatic toll"); lcd.setCursor(0, 1); lcd.print("colection system"); delay(3000); lcd.clear(); } void loop() { if (recharge == 0) { reCharge(); } else { lcd.setCursor(0, 0); lcd.print(" Welcome!!!"); sensorRead(); rfid(); KeyPad(); if (senVal1 == 0) { servoDown(); lcd.clear(); lcd.setCursor(0, 0); lcd.print("Vehicle detected"); delay(1000); lcd.clear(); lcd.setCursor(0, 0); lcd.print("Put your card to"); lcd.setCursor(0, 1); lcd.print("the reader......"); delay(2000); lcd.clear(); } else if (senVal2 == 0 && state == 1) { servoUp(); lcd.clear(); lcd.setCursor(0, 0); lcd.print("Have a safe"); lcd.setCursor(0, 1); lcd.print("journey"); delay(1000); lcd.clear(); state = 0; } } } void servoDown() { servo.attach(9); for (servoPos = 30; servoPos <= 120; servoPos += 1) { servo.write(servoPos); delay(5); } } void servoUp() { servo.attach(9); for (servoPos = 120; servoPos >= 30; servoPos -= 1) { servo.write(servoPos); delay(5); } } void sensorRead() { senVal1 = digitalRead(sensorPin1); senVal2 = digitalRead(sensorPin2); } void rfid() { if ( ! mfrc522.PICC_IsNewCardPresent()) { return; } if ( ! mfrc522.PICC_ReadCardSerial()) { return; } String content = ""; for (byte i = 0; i < mfrc522.uid.size; i++) { content.concat(String(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ")); content.concat(String(mfrc522.uid.uidByte[i], HEX)); } content.toUpperCase(); if (content.substring(1) == "73 50 76 2E") { if (card1Balance >= 500) { lcdPrint(); card1Balance = card1Balance - 500; lcd.setCursor(9, 1); lcd.print(card1Balance); delay(2000); lcd.clear(); state = 1; } else { card = content.substring(1); LcdPrint(); lcd.setCursor(9, 1); lcd.print(card1Balance); lcd.print(" Tk"); delay(2000); lcd.clear(); lcd.setCursor(0, 0); lcd.print("Please Recharge"); delay(1000); lcd.clear(); state = 0; } } else if (content.substring(1) == "F4 C2 37 BB") { if (card2Balance >= 500) { lcdPrint(); card2Balance = card2Balance - 500; lcd.setCursor(9, 1); lcd.print(card2Balance); delay(2000); lcd.clear(); state = 1; } else { card = content.substring(1); LcdPrint(); lcd.setCursor(9, 1); lcd.print(card2Balance); lcd.print(" Tk"); delay(2000); lcd.clear(); lcd.setCursor(0, 0); lcd.print("Please Recharge"); lcd.clear(); delay(1000); state = 0; } } else { digitalWrite(buzzerPin, HIGH); lcd.setCursor(0, 0); lcd.print("Unknown Vehicle"); lcd.setCursor(0, 1); lcd.print("Access denied"); delay(1500); lcd.clear(); digitalWrite(buzzerPin, LOW); } } void KeyPad() { byte KState = KP2.Key_State(); if (KState == PRESSED) { Key = KP2.Getkey(); if (Key) { if (Key == 'A') { lcd.clear(); lcd.setCursor(0, 0); lcd.print("Recharging Mode."); lcd.setCursor(0, 1); lcd.print("................"); delay(1500); lcd.clear(); recharge = 0; } } } } void clearData() { while (data_count != 0) { Data[data_count--] = 0; } return; } void reCharge() { lcd.setCursor(0, 0); lcd.print ("Enter the amount"); byte KState = KP2.Key_State(); if (KState == PRESSED) { Key = KP2.Getkey(); if (Key) { if (Key == 'D') { if (card == "73 50 76 2E") { num1 = Data; card1Balance = num1.toInt() + card1Balance; lcd.clear(); lcd.setCursor(0, 0); lcd.print("Your current"); lcd.setCursor(0, 1); lcd.print("balance: "); lcd.setCursor(9, 1); lcd.print (card1Balance); lcd.print(" Tk"); delay(3000); clearData(); lcd.clear(); recharge = 1; } else if (card == "F4 C2 37 BB") { num2 = Data; card2Balance = num2.toInt() + card2Balance; lcd.clear(); lcd.setCursor(0, 0); lcd.print("Your current"); lcd.setCursor(0, 1); lcd.print("balance: "); lcd.setCursor(9, 1); lcd.print (card2Balance); lcd.print(" Tk"); delay(3000); clearData(); lcd.clear(); recharge = 1; } } else { Data[data_count] = Key; lcd.setCursor(data_count, 1); lcd.print(Data[data_count]); data_count++; } } } } void lcdPrint() { digitalWrite(buzzerPin, HIGH); delay(200); digitalWrite(buzzerPin, LOW); delay(100); lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Successfully"); lcd.setCursor(0, 1); lcd.print(" paid your bill"); delay(1500); lcd.clear(); lcd.setCursor(0, 0); lcd.print("Your Remaining"); lcd.setCursor(0, 1); lcd.print("balance: "); } void LcdPrint() { digitalWrite(buzzerPin, HIGH); delay(200); digitalWrite(buzzerPin, LOW); delay(100); lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Your balance"); lcd.setCursor(0, 1); lcd.print(" is insufficent"); delay(1500); lcd.clear(); lcd.setCursor(0, 0); lcd.print("Your Remaining"); lcd.setCursor(0, 1); lcd.print("balance: "); }