Arduino Project 046 - Based Security System by Arduino with Lcd Display
Arduino Project 046 - Based Security System by Arduino with Lcd Display
/* * Project 046 Based Security System by Arduino with Lcd Display * RFID-RC522 */ #include <SPI.h> #include <MFRC522.h> #include <LiquidCrystal.h> #define SS_PIN 10 #define RST_PIN 9 MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance. #define beep_pin 8 LiquidCrystal lcd(2, 3, 4, 5, 6, 7); void setup() { Serial.begin(9600); // Initiate a serial communication pinMode(beep_pin,OUTPUT); digitalWrite(beep_pin,LOW); lcd.begin(16, 2); lcd.setCursor(3, 1); lcd.print("Welcome!!"); lcd.setCursor(0, 0); lcd.print("Circuit is Ready"); delay(1500); lcd.clear(); SPI.begin(); // Initiate SPI bus mfrc522.PCD_Init(); // Initiate MFRC522 Serial.println("Put your card to the reader..."); Serial.println(); } void loop() { digitalWrite(beep_pin, LOW); lcd.clear(); lcd.setCursor(0, 0); lcd.print("Put your card to"); lcd.setCursor(0, 1); lcd.print("the reader......"); delay(300); // 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) == "XX XX XX XX") //change here the UID of the card/cards that you want to give access { digitalWrite(beep_pin,HIGH); delay(200); digitalWrite(beep_pin,LOW); delay(100); lcd.setCursor(0, 0); lcd.print("ID : "); lcd.print(content.substring(1)); lcd.setCursor(0, 1); lcd.print("Authorized access"); Serial.println("Authorized access"); delay(1200); } else { digitalWrite(beep_pin,HIGH); lcd.setCursor(0, 0); lcd.print("ID : "); lcd.print(content.substring(1)); lcd.setCursor(0, 1); lcd.print("Access denied"); Serial.println(" Access denied"); delay(1500); } }
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